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The dataset generation failed
Error code:   DatasetGenerationError
Exception:    ArrowInvalid
Message:      JSON parse error: Column(/tests/[]) changed from object to number in row 42
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/json.py", line 160, in _generate_tables
                  df = pandas_read_json(f)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/json.py", line 38, in pandas_read_json
                  return pd.read_json(path_or_buf, **kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/pandas/io/json/_json.py", line 815, in read_json
                  return json_reader.read()
                File "/src/services/worker/.venv/lib/python3.9/site-packages/pandas/io/json/_json.py", line 1025, in read
                  obj = self._get_object_parser(self.data)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/pandas/io/json/_json.py", line 1051, in _get_object_parser
                  obj = FrameParser(json, **kwargs).parse()
                File "/src/services/worker/.venv/lib/python3.9/site-packages/pandas/io/json/_json.py", line 1187, in parse
                  self._parse()
                File "/src/services/worker/.venv/lib/python3.9/site-packages/pandas/io/json/_json.py", line 1403, in _parse
                  ujson_loads(json, precise_float=self.precise_float), dtype=None
              ValueError: Trailing data
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1855, in _prepare_split_single
                  for _, table in generator:
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/json.py", line 163, in _generate_tables
                  raise e
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/json.py", line 137, in _generate_tables
                  pa_table = paj.read_json(
                File "pyarrow/_json.pyx", line 308, in pyarrow._json.read_json
                File "pyarrow/error.pxi", line 154, in pyarrow.lib.pyarrow_internal_check_status
                File "pyarrow/error.pxi", line 91, in pyarrow.lib.check_status
              pyarrow.lib.ArrowInvalid: JSON parse error: Column(/tests/[]) changed from object to number in row 42
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1436, in compute_config_parquet_and_info_response
                  parquet_operations = convert_to_parquet(builder)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1053, in convert_to_parquet
                  builder.download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 925, in download_and_prepare
                  self._download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1001, in _download_and_prepare
                  self._prepare_split(split_generator, **prepare_split_kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1742, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1898, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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Section Factorization_for_Verification. Variable A : Set. Variable BASE : BT. Let b := base BASE. Let Num := num BASE. Let Digit := digit BASE. Let Val_bound := val_bound BASE. Variable R : forall n : nat, A -> inf n -> inf n -> A -> Prop. Definition Connection := connection A Digit Digit (R b). Notation Factorizable :...
Theorem factorization_for_verification : factorizable _ R -> proper _ BASE R -> forall (n : nat) (X Y : Num n) (a a' : A), Connection n a X Y a' -> R (exp b n) a (Val_bound n X) (Val_bound n Y) a'.
coq-projects/coqgym/coq-projects/hardware/Factorization/Factorization_Verif.v
factorization_for_verification
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat BT = sig (fun b : nat => lt O b) : Set *** [b := base BASE : nat] inf = fun n : nat => sig (fun x : nat => lt x n) : forall _ : nat, Set *** [Num := num B...
null
Factorization and Verification in Numeral Systems
Validates factorization and properties under numeral system base, ensuring proper connection implies specific relational properties between numeral expansions.
[ { "coq_statement": "Compute exp 2 3.", "expected_output": "8", "comment": "Computes 2 raised to the power of 3 using the exp function, resulting in 2 * 2 * 2 = 8." }, { "coq_statement": "Compute base {exist _ 2 (Nat.lt_0_2)}.", "expected_output": "2", "comment": "The base function extrac...
Section Three_inputs. Variable FR : forall n : nat, A -> inf n -> inf n -> A. Let R (n : nat) (a : A) (x y : inf n) (a' : A) : Prop := a' = FR n a x y.
Lemma prop_Rel : proper R -> forall (X Y : Num 0) (a : A), R 1 a (Val_bound 0 X) (Val_bound 0 Y) a.
coq-projects/coqgym/coq-projects/hardware/Factorization/Factorization.v
prop_Rel
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat BT = sig (fun b : nat => lt O b) : Set *** [b := base BASE : nat] inf = fun n : nat => sig (fun x : nat => lt x n) : forall _ : nat, Set *** [Cons := cons...
null
Dependency on Proper Relation for Numeric Operation on Bound Values
Proving in Lemma prop_Rel that a relation holds for a given numeral transformation under certain proper conditions in Coq.
[ { "coq_statement": "Compute exp 2 0.", "expected_output": "1", "comment": "(* exp 2 0 -> 1 because any number to the power of 0 is 1 *)" }, { "coq_statement": "Compute exp 2 3.", "expected_output": "8", "comment": "(* exp 2 3 -> 8 since 2^3 = 2 * 2 * 2 = 8 *)" }, { "coq_statement...
Section Three_inputs. Variable FR : forall n : nat, A -> inf n -> inf n -> A. Let R (n : nat) (a : A) (x y : inf n) (a' : A) : Prop := a' = FR n a x y. intros P X Y a. replace X with (nil (digit BASE)); auto with arith. replace Y with (nil (digit BASE)); auto with arith. Qed.
Lemma fact_Rel : factorizable R -> forall (n : nat) (X Y : Num (S n)) (a a' : A), R (exp b n) (FR b a (Hd Digit n X) (Hd Digit n Y)) (Val_bound n (Tl (S n) X)) (Val_bound n (Tl (S n) Y)) a' -> R (exp b (S n)) a (Val_bound (S n) X) (Val_bound (S n) Y) a'.
coq-projects/coqgym/coq-projects/hardware/Factorization/Factorization.v
fact_Rel
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat inf = fun n : nat => sig (fun x : nat => lt x n) : forall _ : nat, Set Inductive list (A : Set) : forall _ : nat, Set := nil : list A O | cons : forall (...
null
Relationship between recursive operations on numerical representations
Establishes conditions under which a recursive relation R holds for sequential expansions of numeral-based structures in Coq.
[ { "coq_statement": "Compute Hd Digit 1 (cons 1 (digit BASE) (nil Digit)).", "expected_output": "(* digit BASE *)", "comment": "(* Extracts the head from a list of digits constructed using `cons` and `nil`. The list has one element, so the head is 'digit BASE'. *)" }, { "coq_statement": "Compute ...
Section Comparator_Rel. Variable BASE : BT. Definition FR (n : nat) (o : order) (x y : inf n) : order := match o return order with | L => L | E => Compare_Nat.comparison (val_inf n x) (val_inf n y) | G => G end. Definition R (n : nat) (o : order) (x y : inf n) (o' : order) : Prop := o' = FR n o x y. Notation Proper := ...
Lemma is_proper : proper _ BASE R.
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comparator_Relation.v
is_proper
BT = sig (fun b : nat => lt O b) : Set R = fun (n : nat) (o : order) (x y : inf n) (o' : order) => eq o' (FR n o x y) : forall (n : nat) (_ : order) (_ : inf n) (_ : inf n) (_ : order), Prop Inductive order : Set := L : order | E : order | G : order proper = fun (A : Set) (BASE : BT) => let Digit := digit ...
null
Proving properness of a relational comparator function
Properness of relational comparator R over elements in an order-structured set BASE ensures consistent comparison results in specific cases.
[ { "coq_statement": "Compute FR 2 L (Build_inf 1) (Build_inf 2).", "expected_output": "L", "comment": "(* Since the order input is L, FR should directly return L regardless of the inf values. *)" }, { "coq_statement": "Compute FR 2 E (Build_inf 3) (Build_inf 3).", "expected_output": "E", ...
Section Comparator_Rel. Variable BASE : BT. Definition FR (n : nat) (o : order) (x y : inf n) : order := match o return order with | L => L | E => Compare_Nat.comparison (val_inf n x) (val_inf n y) | G => G end. Definition R (n : nat) (o : order) (x y : inf n) (o' : order) : Prop := o' = FR n o x y. Notation Proper := ...
Lemma is_factorizable : factorizable _ R.
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comparator_Relation.v
is_factorizable
BT = sig (fun b : nat => lt O b) : Set R = fun (n : nat) (o : order) (x y : inf n) (o' : order) => eq o' (FR n o x y) : forall (n : nat) (_ : order) (_ : inf n) (_ : inf n) (_ : order), Prop factorizable = fun (A : Set) (R : forall (n : nat) (_ : A) (_ : inf n) (_ : inf n) (_ : A), Prop) => forall (m n : ...
null
Factorizability of Relation R over Ordered Structures
Demonstrates the relational property R is factorizable, scaling from components to full structures using multiplication and orders.
[ { "coq_statement": "Compute FR 2 L (Some 1) (Some 2).", "expected_output": "L", "comment": "(* When the initial order is L (less than), the result should remain L regardless of comparison. *)" }, { "coq_statement": "Compute FR 2 E (Some 1) (Some 1).", "expected_output": "E", "comment": "...
Require Export Factorization_Prog. Require Export Comparator_Relation. Parameter BASE : BT. Definition b := base BASE. Definition Num := num BASE. Definition Val_bound := val_bound BASE. Definition Digit := digit BASE. Definition Tl := tl Digit.
Theorem Specif_Comp : forall (n : nat) (o : order) (X Y : Num n), {o' : order | R (exp b n) o (Val_bound n X) (Val_bound n Y) o'}.
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comp_Prog.v
Specif_Comp
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat b = base BASE : nat R = fun (n : nat) (o : order) (x y : inf n) (o' : order) => eq o' (FR n o x y) : forall (n : nat) (_ : order) (_ : inf n) (_ : inf n)...
null
Comparison of Ordered Values with Exponential Base
Establishes the existence of an order when comparing values bounded by an exponential base using a given order criteria.
[ { "coq_statement": "Compute (Specif_Comp 0 L (Num 0) (Num 0)).", "expected_output": "existT _ L (* base case with zero exponent *)", "comment": "(* Testing with n=0 and order L results in maintaining order L as there is no change expected due to zero exponent. *)" }, { "coq_statement": "Compute ...
Parameter BASE : BT. Definition b := base BASE. Definition Digit := digit BASE. Definition Num := num BASE. Definition Val_bound := val_bound BASE. Definition Value := Val BASE. Definition Connection := connection order (inf b) (inf b) (R b).
Theorem general_correct : forall (n : nat) (X Y : Num n) (o o' : order), Connection n o X Y o' -> R (exp b n) o (Val_bound n X) (Val_bound n Y) o'.
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comp_Verif.v
general_correct
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat b = base BASE : nat R = fun (n : nat) (o : order) (x y : inf n) (o' : order) => eq o' (FR n o x y) : forall (n : nat) (_ : order) (_ : inf n) (_ : inf n)...
null
Correctness of Number Comparison Based on Connection
Ensures that, given specific orders and numbers, a connection implies a valid comparison relation between their bounded values.
[ { "coq_statement": "Compute Val_bound 0 (digit 0).", "expected_output": "(* constant output due to base case instead of real computation *)", "comment": "The edge case for the smallest number with zero digits. Expected to return a constant value due to the base definitions." }, { "coq_statement"...
Parameter BASE : BT. Definition b := base BASE. Definition Digit := digit BASE. Definition Num := num BASE. Definition Val_bound := val_bound BASE. Definition Value := Val BASE. Definition Connection := connection order (inf b) (inf b) (R b). intros n X Y o o' C. unfold b in |- *. apply factorization_for_verification w...
Theorem correctness : forall (n : nat) (X Y : Num n) (o : order), Connection n E X Y o -> o = Compare_Nat.comparison (Value n X) (Value n Y).
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comp_Verif.v
correctness
Num = num BASE : forall _ : nat, Set Inductive order : Set := L : order | E : order | G : order Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ :...
null
Correctness of Numerical Comparison Verification
Establishes that given a connection implying equality, derived orders match numerical comparison results based on their values.
[ { "coq_statement": "Compute Compare_Nat.comparison (Value 0 (num BASE 0)) (Value 0 (num BASE 0)).", "expected_output": "E", "comment": "(* Comparison when both numbers are zero. Expected to return 'E' for equality. *)" }, { "coq_statement": "Compute Compare_Nat.comparison (Value 1 (num BASE 1)) ...
Parameter BASE : BT. Definition b := base BASE. Definition Num := num BASE. Definition Val_bound := val_bound BASE.
Lemma Comparator : forall (n : nat) (o : order) (X Y : Num n), {o' : order | R (exp b n) o (Val_bound n X) (Val_bound n Y) o'}.
coq-projects/coqgym/coq-projects/hardware/Factorization/Comparator/Comp_Synth.v
Comparator
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat b = base BASE : nat R = fun (n : nat) (o : order) (x y : inf n) (o' : order) => eq o' (FR n o x y) : forall (n : nat) (_ : order) (_ : inf n) (_ : inf n)...
null
Order Comparator for Numerical Values
Provides an order relation between two numerical values based on specific computational base and exponentiation logic.
[ { "coq_statement": "Compute Comparator 0 L (Num 0) (Num 0).", "expected_output": "(existT (fun o' : order => R (exp b 0) L (Val_bound 0 (Num 0)) (Val_bound 0 (Num 0)) o') E proof_0)", "comment": "For n=0, the base case of exp function gives 1. Both X and Y are equivalent, so the resulting order is E (eq...
Section compare_num. Variable BASE : BT. Let Digit := digit BASE. Let valB := val BASE. Let ValB := Val BASE. Let Num := num BASE. Let Val_bound := val_bound BASE. Let Cons := cons Digit. Let Nil := nil Digit.
Lemma Comp_dif : forall (n : nat) (x y : Digit) (X Y : Num n), valB x < valB y -> Compare_Nat.comparison (ValB (S n) (Cons n x X)) (ValB (S n) (Cons n y Y)) = L.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Num.v
Comp_dif
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat BT = sig (fun b : nat => lt O b) : Set digit = fun BASE : BT => sig (fun x : nat => lt x (base BASE)) : forall _ : BT, Set inf = fun n : nat => sig (fun ...
null
Comparing Numbers Based on their Most Significant Digit
When the most significant digit of one number is smaller than another, comparing their numerical values yields a less-than result.
[ { "coq_statement": "Compute comparison 2 3.", "expected_output": "L", "comment": "(* Since 2 < 3, according to the 'comparison' function using Lt_eq_Gt logic, the result is L indicating 'less than'. *)" }, { "coq_statement": "Compute comparison 5 5.", "expected_output": "E", "comment": "...
Section compare_num. Variable BASE : BT. Let Digit := digit BASE. Let valB := val BASE. Let ValB := Val BASE. Let Num := num BASE. Let Val_bound := val_bound BASE. Let Cons := cons Digit. Let Nil := nil Digit. intros n x y X Y l. apply comparisonL. unfold ValB in |- *. unfold Cons in |- *. unfold Digit in |- *. apply c...
Lemma Comp_eq : forall (n : nat) (x y : Digit) (X Y : Num n), valB x = valB y -> Compare_Nat.comparison (ValB (S n) (Cons n x X)) (ValB (S n) (Cons n y Y)) = Compare_Nat.comparison (ValB n X) (ValB n Y).
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Num.v
Comp_eq
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat BT = sig (fun b : nat => lt O b) : Set digit = fun BASE : BT => sig (fun x : nat => lt x (base BASE)) : forall _ : BT, Set inf = fun n : nat => sig (fun ...
null
Comparison of Natural Number Representations in a Specific Base
Equivalence in digit values ensures that augmented representations remain equivalent when comparing their numeric values in the base.
[ { "coq_statement": "Compute (Comp_eq 1 2 2 (cons Digit 0 1 (nil Digit)) (cons Digit 0 1 (nil Digit)) eq_refl).", "expected_output": "E", "comment": "(* Since both x and y have the same value (2), the comparison of valuations should yield equality (E) as expected according to 'Comp_eq'. *)" }, { ...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third.
Lemma Lt_eq_Gt : forall n m : nat, Or3 (n < m) (n = m) (n > m).
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
Lt_eq_Gt
Inductive Or3 (A B C : Prop) : Set := First : forall _ : A, Or3 A B C | Second : forall _ : B, Or3 A B C | Third : forall _ : C, Or3 A B C
null
Ternary relation classification of natural numbers
For any two natural numbers, they relate by either being less than, equal to, or greater than each other.
[ { "coq_statement": "Compute (match Lt_eq_Gt 2 3 with | First _ => \"First\" | Second _ => \"Second\" | Third _ => \"Third\" end).", "expected_output": "\"First\"", "comment": "In this case, 2 < 3 holds true, so the constructor 'First' is used to indicate the left predicate in Or3, which means n < m." ...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comparisonL : forall v1 v2 : nat, v1 < v2 -> Compare_Nat.comparison v1 v2 = L.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comparisonL
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order
null
Comparison of Natural Numbers Results in L for Less Than
Comparison of two natural numbers results in L when the first number is less than the second number, proving transitivity.
[ { "coq_statement": "Compute comparison 2 5.", "expected_output": "L", "comment": "(* comparison 2 5 -> L because 2 < 5, which matches the 'L' case in the comparison function. *)" }, { "coq_statement": "Compute comparison 3 3.", "expected_output": "E", "comment": "(* comparison 3 3 -> E b...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comparisonG : forall v1 v2 : nat, v1 > v2 -> Compare_Nat.comparison v1 v2 = G.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comparisonG
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order
null
Comparison of natural numbers yields 'greater' under specific conditions.
For two natural numbers v1 and v2, if v1 is greater than v2, their comparison yields the 'greater than' result.
[ { "coq_statement": "Compute Compare_Nat.comparison 5 3.", "expected_output": "G", "comment": "(* Compare_Nat.comparison 5 3 -> G because 5 > 3 *)" }, { "coq_statement": "Compute Compare_Nat.comparison 2 5.", "expected_output": "L", "comment": "(* Compare_Nat.comparison 2 5 -> L because 2...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comparisonE : forall v1 v2 : nat, v1 = v2 -> Compare_Nat.comparison v1 v2 = E.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comparisonE
comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order
null
Equality comparison of natural numbers results in equality order.
Given two natural numbers, when they are equal, their comparison using Compare_Nat results in the equality order 'E'.
[ { "coq_statement": "Compute Compare_Nat.comparison 0 0.", "expected_output": "E", "comment": "(* Both numbers are equal (0 = 0), hence the result is E (Equal). *)" }, { "coq_statement": "Compute Compare_Nat.comparison 5 5.", "expected_output": "E", "comment": "(* Both numbers are equal (...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma inv_comparisonL : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = L -> v1 < v2.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
inv_comparisonL
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order
null
Comparison Lemma for Less-than Condition
Proves that if the comparison function returns L, then the first argument is indeed less than the second argument.
[ { "coq_statement": "Compute Compare_Nat.comparison 3 5.", "expected_output": "L", "comment": "(* Compare_Nat.comparison 3 5 -> L because 3 < 5 *)" }, { "coq_statement": "Compute Compare_Nat.comparison 5 5.", "expected_output": "E", "comment": "(* Compare_Nat.comparison 5 5 -> E because 5...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma inv_comparisonE : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = E -> v1 = v2.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
inv_comparisonE
comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order
null
Equality from comparison result E.
Ensures that when comparing two natural numbers, if result is E, then both numbers must be equal.
[ { "coq_statement": "Compute comparison 0 0.", "expected_output": "E", "comment": "(* comparison 0 0 -> E because both values are equal. *)" }, { "coq_statement": "Compute comparison 3 2.", "expected_output": "G", "comment": "(* comparison 3 2 -> G because v1 (3) is greater than v2 (2). *...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma inv_comparisonG : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = G -> v1 > v2.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
inv_comparisonG
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order
null
Lemma on comparison leading to 'Greater' condition
Provides that when comparison yields 'Greater', the first integer is confirmed to be greater than the second integer.
[ { "coq_statement": "Compute comparison 5 3.", "expected_output": "G", "comment": "(* Since 5 > 3, comparison should return G indicating 'greater'. *)" }, { "coq_statement": "Compute comparison 3 5.", "expected_output": "L", "comment": "(* Since 3 < 5, comparison should return L indicatin...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma inv_comparison : forall v1 v2 : nat, match Compare_Nat.comparison v1 v2 return Prop with | L => v1 < v2 | E => v1 = v2 | G => v1 > v2 end.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
inv_comparison
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order Inductive order : Set := L :...
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Invariant Properties of Natural Number Comparison
Demonstrates that comparing two natural numbers results in a logical correspondence: L for less, E for equal, G for greater.
[ { "coq_statement": "Compute comparison 3 5.", "expected_output": "L", "comment": "(* When comparison 3 5 is evaluated, 3 < 5, so the expected result is L for Less. *)" }, { "coq_statement": "Compute comparison 5 5.", "expected_output": "E", "comment": "(* When comparison 5 5 is evaluated...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comp_sym_LG : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = L -> Compare_Nat.comparison v2 v1 = G.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comp_sym_LG
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order
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Symmetry Property of Natural Number Comparison
For any natural numbers v1 and v2, if v1 is less than v2 (comparison yields L), then v2 is greater than v1 (comparison yields G).
[ { "coq_statement": "Compute (Compare_Nat.comparison 3 5).", "expected_output": "L", "comment": "(* Compare_Nat.comparison 3 5 -> L because 3 is less than 5. *)" }, { "coq_statement": "Compute (Compare_Nat.comparison 5 3).", "expected_output": "G", "comment": "(* Compare_Nat.comparison 5 ...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comp_sym_GL : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = G -> Compare_Nat.comparison v2 v1 = L.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comp_sym_GL
Inductive order : Set := L : order | E : order | G : order comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order
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Symmetry Property of Comparison Returning Greater
Given two natural numbers, if one compares as greater, then the reverse comparison results in less. This establishes symmetry.
[ { "coq_statement": "Compute Compare_Nat.comparison 3 2.", "expected_output": "G", "comment": "(* Comparison of 3 and 2: 3 > 2, so the expected output is G (greater) *)" }, { "coq_statement": "Compute Compare_Nat.comparison 2 3.", "expected_output": "L", "comment": "(* Comparison of 2 and...
Require Export Arith. Global Set Asymmetric Patterns. Inductive Or3 (A B C : Prop) : Set := | First : A -> Or3 A B C | Second : B -> Or3 A B C | Third : C -> Or3 A B C. Hint Resolve First Second Third. simple induction n; simple induction m. apply Second; try trivial with arith. intros; apply First; try trivial with ar...
Lemma comp_sym_E : forall v1 v2 : nat, Compare_Nat.comparison v1 v2 = E -> Compare_Nat.comparison v2 v1 = E.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Compare_Nat.v
comp_sym_E
comparison = fun v1 v2 : nat => match Lt_eq_Gt v1 v2 with | @First _ _ _ _ => L | @Second _ _ _ _ => E | @Third _ _ _ _ => G end : forall (_ : nat) (_ : nat), order Inductive order : Set := L : order | E : order | G : order
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Symmetry of Equality in Natural Number Comparison
Ensures equality symmetry in comparisons between two natural numbers using comparison function, confirming if v1 = E then v2 = E.
[ { "coq_statement": "Compute Compare_Nat.comparison 0 0.", "expected_output": "E", "comment": "(* Compare_Nat.comparison 0 0 -> E because both values are equal. *)" }, { "coq_statement": "Compute Compare_Nat.comparison 5 3.", "expected_output": "G", "comment": "(* Compare_Nat.comparison 5...
Section Numerals. Definition BT := {b : nat | 0 < b}. Variable BASE : BT. Definition base := Inj nat (fun b : nat => 0 < b) BASE. Definition digit := {x : nat | x < base}. Definition val : digit -> nat := Inj nat (fun x : nat => x < base). Definition num := list digit. Definition inf (n : nat) := {x : nat | x < n}. Def...
Lemma Val_val : forall x : digit, Val 1 (Cons 0 x Nil) = val x.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Numerals.v
Val_val
BT = sig (fun b : nat => lt O b) : Set digit = sig (fun x : nat => lt x base) : Set *** [Cons := cons digit : forall (n : nat) (_ : digit) (_ : list digit n), list digit (S n)] Inductive list (A : Set) : forall _ : nat, Set := nil : list A O | cons : forall (n : nat) (_ : A) (_ : list A n), ...
null
Base Case of Val Function for Single Digit
Val function evaluates a single-digit numeral to its equivalent numeric value when constructed with Cons and Nil.
[ { "coq_statement": "Eval compute in Val 1 (cons digit 0 (exist _ 1 Lt.none) (nil digit)).", "expected_output": "(* 1 *)", "comment": "(* Val 1 (Cons 0 x Nil) = val x for x = (exist _ 1 Lt.none) with base assumed > 1, thus Val 1 (Cons 0 (exist _ 1 Lt.none) Nil) results in 1. *)" }, { "coq_stateme...
Section Numerals. Definition BT := {b : nat | 0 < b}. Variable BASE : BT. Definition base := Inj nat (fun b : nat => 0 < b) BASE. Definition digit := {x : nat | x < base}. Definition val : digit -> nat := Inj nat (fun x : nat => x < base). Definition num := list digit. Definition inf (n : nat) := {x : nat | x < n}. Def...
Lemma upper_bound : forall (n : nat) (X : num n), Val n X < exp base n.
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Numerals.v
upper_bound
exp = fix exp (e x : nat) {struct x} : nat := match x with | O => S O | S p => Init.Nat.mul e (exp e p) end : forall (_ : nat) (_ : nat), nat BT = sig (fun b : nat => lt O b) : Set digit = sig (fun x : nat => lt x base) : Set *** [Cons := cons digit : forall (n : nat) (_ : digit) (_ ...
null
Upper Bound Lemma for Numeric Representation
For any natural number length and numeric sequence, Val is strictly less than exponential base raised to sequence length.
[ { "coq_statement": "Compute Val 0 (nil digit).", "expected_output": "0", "comment": "(* The Val function evaluates the value of an empty numeral (nil). Since there are no digits, the expected result is 0. *)" }, { "coq_statement": "Compute Val 1 (cons 0 (exist _ 1 ltac:(lia)) (nil digit)).", ...
Section Numerals. Definition BT := {b : nat | 0 < b}. Variable BASE : BT. Definition base := Inj nat (fun b : nat => 0 < b) BASE. Definition digit := {x : nat | x < base}. Definition val : digit -> nat := Inj nat (fun x : nat => x < base). Definition num := list digit. Definition inf (n : nat) := {x : nat | x < n}. Def...
Lemma comp_dif : forall (n : nat) (x y : digit) (X Y : num n), val x < val y -> Val (S n) (Cons n x X) < Val (S n) (Cons n y Y).
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Numerals.v
comp_dif
BT = sig (fun b : nat => lt O b) : Set digit = sig (fun x : nat => lt x base) : Set *** [Cons := cons digit : forall (n : nat) (_ : digit) (_ : list digit n), list digit (S n)] Inductive list (A : Set) : forall _ : nat, Set := nil : list A O | cons : forall (n : nat) (_ : A) (_ : list A n), ...
null
Comparing numeral values with different head digits
Given numeral structures with digits x and y, if val x is less than val y, their numeral values maintain this order.
[ { "coq_statement": "Compute Val 1 (cons 0 (exist _ 1 (Nat.lt_0_succ 1)) (nil digit)).", "expected_output": "1", "comment": "(* The number represented is a single digit '1'. Base must be greater than 1, so 1 is valid; hence Val evaluates to 1. *)" }, { "coq_statement": "Compute Val 2 (cons 1 (exi...
Section Numerals. Definition BT := {b : nat | 0 < b}. Variable BASE : BT. Definition base := Inj nat (fun b : nat => 0 < b) BASE. Definition digit := {x : nat | x < base}. Definition val : digit -> nat := Inj nat (fun x : nat => x < base). Definition num := list digit. Definition inf (n : nat) := {x : nat | x < n}. Def...
Lemma comp_eq_most : forall (n : nat) (x y : digit) (X Y : num n), val x = val y -> Val n X < Val n Y -> Val (S n) (Cons n x X) < Val (S n) (Cons n y Y).
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Numerals.v
comp_eq_most
BT = sig (fun b : nat => lt O b) : Set digit = sig (fun x : nat => lt x base) : Set *** [Cons := cons digit : forall (n : nat) (_ : digit) (_ : list digit n), list digit (S n)] Inductive list (A : Set) : forall _ : nat, Set := nil : list A O | cons : forall (n : nat) (_ : A) (_ : list A n), ...
null
Comparison of values in numeral lists with equal leading digits
Compares numeral lists with equal leading digits, asserting the order of complete values based on subsequent elements.
[ { "coq_statement": "Compute (Val 0 (Nil)).", "expected_output": "0", "comment": "(* Val base case: Val 0 (Nil) returns 0 because the list is empty, representing numeral 0. *)" }, { "coq_statement": "Compute (Val 1 (Cons 0 (exist _ 3 (lt_n_S 0 3 (lt_O_Sn 2))) Nil)).", "expected_output": "3", ...
Section Numerals. Definition BT := {b : nat | 0 < b}. Variable BASE : BT. Definition base := Inj nat (fun b : nat => 0 < b) BASE. Definition digit := {x : nat | x < base}. Definition val : digit -> nat := Inj nat (fun x : nat => x < base). Definition num := list digit. Definition inf (n : nat) := {x : nat | x < n}. Def...
Lemma com_eq : forall (n : nat) (x y : digit) (X Y : num n), val x = val y -> Val n X = Val n Y -> Val (S n) (Cons n x X) = Val (S n) (Cons n y Y).
coq-projects/coqgym/coq-projects/hardware/Factorization/Lib_Numerals/Numerals.v
com_eq
BT = sig (fun b : nat => lt O b) : Set digit = sig (fun x : nat => lt x base) : Set *** [Cons := cons digit : forall (n : nat) (_ : digit) (_ : list digit n), list digit (S n)] Inductive list (A : Set) : forall _ : nat, Set := nil : list A O | cons : forall (n : nat) (_ : A) (_ : list A n), ...
null
Commutes equality over numeral calculation
Commutes numeral equality by ensuring new numeral with equal digit pairs and numeral lists retains equivalent calculated value.
[ { "coq_statement": "Compute Val 1 (Cons 0 (exist _ 1 ltac:(auto)) (Nil 0)).", "expected_output": "1", "comment": "(* Val 1 (Cons 0 (exist _ 1 ltac:(auto)) (Nil 0)) should compute to 1 because for a single digit x and no further digits, the value is simply the integer represented by x. *)" }, { "...
Lemma pair_fst_snd : forall (A B : Set) (c : A * B), (fst c, snd c) = c.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
pair_fst_snd
null
Projection properties of Cartesian products.
Pairing the first and second projections of a Cartesian pair reconstructs the original pair in a set context.
[ { "coq_statement": "Compute fst (1, true).", "expected_output": "1", "comment": "(* The function 'fst' extracts the first element from the pair (1, true), which is 1. *)" }, { "coq_statement": "Compute snd (false, 'a').", "expected_output": "'a'", "comment": "(* The function 'snd' extrac...
Section programming_3. Variable A B C : Set.
Theorem fst_3 : prod_3 A B C -> A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
fst_3
Inductive prod_3 (A B C : Set) : Set := triplet : forall (_ : A) (_ : B) (_ : C), prod_3 A B C
null
Extract first component from triple product.
Extracts the first element of a three-component product structure, allowing access to the element of type A.
[ { "coq_statement": "Definition t1 : prod_3 unit unit unit := triplet tt tt tt.", "expected_output": "unit", "comment": "Creating a triplet with all unit types." }, { "coq_statement": "Compute (fst_3 _ _ _ (triplet 5 true \"hello\")).", "expected_output": "5", "comment": "Expecting the fi...
Section programming_3. Variable A B C : Set. simple induction 1; try trivial. Defined.
Theorem snd_3 : prod_3 A B C -> B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
snd_3
Inductive prod_3 (A B C : Set) : Set := triplet : forall (_ : A) (_ : B) (_ : C), prod_3 A B C
null
Second Element Projection from 3-Product Tuple
Extracts the second element of type B from a given 3-element tuple structure in a dependent type context.
[ { "coq_statement": "Compute (snd_3 (triplet 1 2 3)).", "expected_output": "2", "comment": "(* The prod_3 type is instantiated with integers. The triplet 1 2 3 is created, snd_3 should extract the second element 2. *)" }, { "coq_statement": "Compute (snd_3 (triplet true false true)).", "expec...
Section programming_3. Variable A B C : Set. simple induction 1; try trivial. Defined. simple induction 1; try trivial. Defined.
Theorem thd_3 : prod_3 A B C -> C.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
thd_3
Inductive prod_3 (A B C : Set) : Set := triplet : forall (_ : A) (_ : B) (_ : C), prod_3 A B C
null
Retrieve third element from a triplet
Extracts the third component of a triplet structure in a product type, working with types A, B, and C in Coq.
[ { "coq_statement": "Compute match triplet 1 2 3 with triplet _ _ c => c end.", "expected_output": "3", "comment": "(* The function extracts the third component, '3', from the triplet (1, 2, 3) of type prod_3 A B C. *)" }, { "coq_statement": "Compute match triplet true false true with triplet _ _...
Section programming_3. Variable A B C : Set. simple induction 1; try trivial. Defined. simple induction 1; try trivial. Defined. simple induction 1; try trivial. Defined. End programming_3. Notation Fst_3 := (fst_3 _ _ _) (only parsing). Notation Snd_3 := (snd_3 _ _ _) (only parsing). Notation Thd_3 := (thd_3 _ _ _) (o...
Lemma triplet_fst_snd_thd : forall (A B C : Set) (c : prod_3 A B C), triplet _ _ _ (fst_3 _ _ _ c) (snd_3 _ _ _ c) (thd_3 _ _ _ c) = c.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
triplet_fst_snd_thd
snd_3 = fun (A B C : Set) (H : prod_3 A B C) => prod_3_rec A B C (fun _ : prod_3 A B C => B) (fun (_ : A) (b : B) (_ : C) => b) H : forall (A B C : Set) (_ : prod_3 A B C), B Inductive prod_3 (A B C : Set) : Set := triplet : forall (_ : A) (_ : B) (_ : C), prod_3 A B C Inductive prod_3 (A B C : Set) : Set :...
null
Reconstruction of a 3-tuple using its components
Reconstructing a 3-tuple by extracting and recombining its components accurately returns the original tuple, preserving its structure.
[ { "coq_statement": "Compute fst_3 _ _ _ (triplet nat bool unit 1 true tt).", "expected_output": "1", "comment": "(* Extracts the first component, 1, from the triplet (1, true, tt) of type prod_3 nat bool unit. *)" }, { "coq_statement": "Compute snd_3 _ _ _ (triplet nat bool unit 1 true tt).", ...
Section programming_3. Variable A B C : Set. simple induction 1; try trivial. Defined. simple induction 1; try trivial. Defined. simple induction 1; try trivial. Defined. End programming_3. Notation Fst_3 := (fst_3 _ _ _) (only parsing). Notation Snd_3 := (snd_3 _ _ _) (only parsing). Notation Thd_3 := (thd_3 _ _ _) (o...
Lemma ifProp_or : forall (b : bool) (P Q : Prop), ifProp Prop b P Q -> P \/ Q.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Set_Products.v
ifProp_or
ifProp = fun (C : Type) (b : bool) (x y : C) => if b then x else y : forall (C : Type) (_ : bool) (_ : C) (_ : C), C
null
Logical implication of ifProp leading to a disjunction
Using ifProp with a boolean condition on propositions P and Q results in a logical disjunction of P or Q.
[ { "coq_statement": "Compute ifProp Prop true (True) (False).", "expected_output": "True", "comment": "(* ifProp Prop true True False returns True since the boolean condition is true *)" }, { "coq_statement": "Compute ifProp Prop false (True) (False).", "expected_output": "False", "commen...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C.
Lemma sym_and : forall A B : Prop, A /\ B -> B /\ A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
sym_and
null
Symmetry of Conjunction
Proves that if propositions A and B are both true together, then B and A are also true together.
[ { "coq_statement": "Compute (sym_and nat nat (conj 1 2)).", "expected_output": "2, 1", "comment": "(* Given the conjunction 1 and 2, 'sym_and' swaps them, resulting in the pair (2, 1). *)" }, { "coq_statement": "Compute (sym_and bool bool (conj true false)).", "expected_output": "false, true...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and.
Lemma sym_or : forall A B : Prop, A \/ B -> B \/ A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
sym_or
null
Commutativity of Logical OR
Proves that the logical OR operation is commutative for propositions A and B, allowing reordering of disjunctions.
[ { "coq_statement": "Compute (sym_or True False (or_introl I)).", "expected_output": "or_intror I", "comment": "(* sym_or True False (True -> True or False) results in (False -> True or False), aka or_intror I *)" }, { "coq_statement": "Compute (sym_or False True (or_intror I)).", "expected_o...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_and_l : forall A B : Prop, ~ A -> ~ (A /\ B).
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_and_l
null
Negation of conjunction when left operand is false
Demonstrates that if proposition A is false, then the conjunction A and B is also false, regardless of B.
[ { "coq_statement": "Compute (no_and_l False True not_false_is_true).", "expected_output": "fun H : False => ex_falso_quodlibet H", "comment": "(* If A is False, ~ A holds as False doesn't have any proof. Thus, ~ (A /\\ B) because conjunction requires both parts to be true. *)" }, { "coq_statemen...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_and_r : forall A B : Prop, ~ B -> ~ (A /\ B).
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_and_r
null
Negation of conjunction with false right component
Negation of 'B' implies negation of conjunction 'A and B'. The proof uses logical implication and elimination tactics.
[ { "coq_statement": "Eval compute in (fun (A B : Prop) (f : A) (g : B) => let (x, y) := f in (g y)).", "expected_output": "Error: Non-propositional pattern-matching on a non-propositional term", "comment": "This statement attempts to destruct a proposition in a computational context, which leads to an er...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or : forall A B : Prop, ~ A -> B \/ A -> B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or
null
Derivation of B from limit on disjunction with negation of A
For any propositions A and B, if A is false, then from the disjunction of B or A, B is true.
[ { "coq_statement": "Compute (let H := no_or nat (or3 False True True) (fun _ => False_rect _ tt) (or_introl eq_refl : or3 False True True) in H).", "expected_output": "or3_Middle _ _ _ eq_refl", "comment": "(* Since 'A' is False, the given hypothesis '~ A' holds, and since 'B \\/ A' is true due to the p...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or_inv : forall A B : Prop, ~ A -> A \/ B -> B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or_inv
null
Resolution of disjunction with negation
If proposition A is false and the disjunction A or B is true, proposition B must be true.
[ { "coq_statement": "Compute (no_or_inv False True I (or_introl I)).", "expected_output": "True", "comment": "(* With False as ~A, A or B evaluates to B which is True in this case. So, the result is True. *)" }, { "coq_statement": "Compute (no_or_inv False False I (or_intror I)).", "expected_...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or_and : forall A B C D : Prop, ~ C -> A /\ B \/ C /\ D -> A /\ B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or_and
null
Disjunction with a forbidden conjunct results in a valid conjunction
Asserting the impossibility of C and given A and B or C and D, deduces A and B must hold.
[ { "coq_statement": "Compute (let A := True in let B := False in (False, exist H: ~ B, eq_refl : A /\\ B \\/ B)).", "expected_output": "absurd A : False -> A:True -> B:False doesn't hold.", "comment": "In this case, A is True, and B is False, both exist in different conjunction which naturally leads to a...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or_and_inv : forall A B C D : Prop, ~ D -> C /\ D \/ A /\ B -> A /\ B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or_and_inv
null
Resolving disjunction of conjunctions with negation
Establishes A and B given a disjunction involving C and D, provided D is false and A and B are combined.
[ { "coq_statement": "Compute (let A := False in let B := True in let C := False in let D := False in let proof := conj I I in let h1 := conj (conj I I) proof in let h2 := or_introl h1 : C /\\ D \\/ A /\\ B in no_or_and_inv A B C D proof h2).", "expected_output": "conj I I", "comment": "(* When ~D holds a...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_no_A : forall A : Prop, A -> ~ ~ A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_no_A
null
Double negation elimination for proposition A
Proof demonstrates that if A is true, then not not A is also true, reinforcing the constructivist logic approach.
[ { "coq_statement": "Compute (fun A : Prop => prove_no_no_A A (fun a : A => a)).", "expected_output": "fun A : Prop => (fun a : A => a).", "comment": "(* The function 'prove_no_no_A' is expected to demonstrate that if A is provable, then A is provable under double negation elimination *)" }, { "c...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma impl_no_no : forall A B : Prop, (A -> B) -> ~ B -> ~ A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
impl_no_no
null
Contrapositive with Double Negation
Given propositions A and B, if A implies B and B is false, then A is also false. This exploits contraposition.
[ { "coq_statement": "Compute impl_no_no (fun x : False => x) (fun n => I).", "expected_output": "fun _ : False => False_ind False", "comment": "(* Applying impl_no_no with A := False and B := True results in ~False. False can't be proven, hence the identity function for False is returned. *)" }, { ...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or_r : forall A B : Prop, ~ A -> A \/ B -> B.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or_r
null
Disjunction Elimination on LHS with Negation
If a proposition A is false, and the disjunction A or B holds, then B must be true according to logic.
[ { "coq_statement": "Compute (let A := False in let B := True in proj2 (no_or_r A B I (or_intror B I))).", "expected_output": "true", "comment": "(* Because A is False and B is True, ~A holds. Therefore, A \\/ B simplifies to True, validating that B holds. *)" }, { "coq_statement": "Compute (let ...
(* Lib_Prop.v *) Inductive or3 (A B C : Prop) : Set := | or3_Left : A -> or3 A B C | or3_Middle : B -> or3 A B C | or3_Right : C -> or3 A B C. intros A B H; elim H; split; auto. Qed. Hint Immediate sym_and. simple induction 1; auto. Qed. Hint Immediate sym_o...
Lemma no_or_l : forall A B : Prop, ~ B -> A \/ B -> A.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Prop.v
no_or_l
null
Elimination of disjunctive hypothesis with negated right disjunct
Assumes B is false and given A or B holds, it concludes A must be true by eliminating the disjunction.
[ { "coq_statement": "Compute (let A := True in let B := False in let H := (fun x : False => match x with end) in let A_or_B := or_introl (True := A) (False := B) I in no_or_l A B H (or_introl A B I)).", "expected_output": "I", "comment": "(* Since ~B is True and A is True, A is the resulting value, so th...
Section Dependent_lists. Variable A : Set. Inductive list : nat -> Set := | nil : list 0 | cons : forall n : nat, A -> list n -> list (S n). Definition eq_list := eq_dep nat list. Definition hd (n : nat) (l : list n) : Exc A := match l in (list m) return (Exc A) with | nil => error | cons p a l' => value a end. Definit...
Lemma empty_dep : forall (n : nat) (l : list n), n = 0 -> eq_list 0 nil n l.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Lists/Dependent_lists.v
empty_dep
Inductive list : forall _ : nat, Set := nil : list O | cons : forall (n : nat) (_ : A) (_ : list n), list (S n) eq_list = eq_dep nat list : forall (p : nat) (_ : list p) (q : nat) (_ : list q), Prop Inductive list : forall _ : nat, Set := nil : list O | cons : forall (n : nat) (_ : A) (_ : list n), list (...
null
Dependent Equality for Empty Lists
Asserts that any list with a length of zero is propositionally equal to an empty list using dependent equality.
[ { "coq_statement": "Compute eq_list 0 nil 0 nil.", "expected_output": "eq_list 0 nil 0 nil", "comment": "(* eq_list 0 nil 0 nil holds true by definition, as both lists are empty, matching the specification *)" }, { "coq_statement": "Compute eq_list 0 nil 1 (cons 0 _ nil).", "expected_output"...
Section Dependent_lists. Variable A : Set. Inductive list : nat -> Set := | nil : list 0 | cons : forall n : nat, A -> list n -> list (S n). Definition eq_list := eq_dep nat list. Definition hd (n : nat) (l : list n) : Exc A := match l in (list m) return (Exc A) with | nil => error | cons p a l' => value a end. Definit...
Lemma split_list : forall (n : nat) (l : list (S n)), l = cons n (head (S n) l (lt_O_Sn n)) (tl (S n) l).
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Lists/Dependent_lists.v
split_list
tl = fun (n : nat) (l : list n) => match l in (list m) return (list (Init.Nat.pred m)) with | nil => nil | cons _ _ l' => l' end : forall (n : nat) (_ : list n), list (Init.Nat.pred n) Inductive list : forall _ : nat, Set := nil : list O | cons : forall (n : nat) (_ : A) (_ : list n), list (S n) Inductive lis...
null
Splitting a dependent list into head and tail
Splits a list with at least one element into its head and tail, reconstructs it using list constructors and functions.
[ { "coq_statement": "Compute split_list 0 (cons 0 5 nil).", "expected_output": "eq_refl", "comment": "(cons 0 (head 1 (cons 0 5 nil) (lt_O_Sn 0)) (tl 1 (cons 0 5 nil))) simplifies to (cons 0 5 nil), which shows that the head and tail functions are correctly reconstructing the list." }, { "coq_sta...
Section Dependent_lists. Variable A : Set. Inductive list : nat -> Set := | nil : list 0 | cons : forall n : nat, A -> list n -> list (S n). Definition eq_list := eq_dep nat list. Definition hd (n : nat) (l : list n) : Exc A := match l in (list m) return (Exc A) with | nil => error | cons p a l' => value a end. Definit...
Lemma Non_empty_Hd : forall (n : nat) (a : A) (l : list n), Hd n (cons n a l) = a.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Lists/Dependent_lists.v
Non_empty_Hd
Inductive list : forall _ : nat, Set := nil : list O | cons : forall (n : nat) (_ : A) (_ : list n), list (S n) Hd = fun (n : nat) (l : list (S n)) => let (a, _) := non_empty n l in a : forall (n : nat) (_ : list (S n)), A Inductive list : forall _ : nat, Set := nil : list O | cons : forall (n : nat) (_ :...
null
Assertion of head extraction from non-empty lists
For any natural number n, element a, and list l, Hd retrieves a when called on the list (cons n a l).
[ { "coq_statement": "Compute Hd 2 (cons 2 a (cons 1 b (cons 0 c nil))).", "expected_output": "a", "comment": "(* Hd 2 (cons 2 a (cons 1 b (cons 0 c nil))) -> a; According to the specification, Hd extracts the head of a non-empty list. *)" }, { "coq_statement": "Compute Hd 1 (cons 1 a (cons 0 b ni...
Require Export Bool. Require Export IfProp. Require Export Zerob.
Lemma bool_dec : forall b : bool, {b = true} + {b = false}.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
bool_dec
null
Boolean Dichotomy Lemma
Determines a boolean is precisely true or false, ensuring decidability between the two possible values of a boolean.
[ { "coq_statement": "Compute (if (proj1_sig (bool_dec true)) then \"true\" else \"false\").", "expected_output": "\"true\"", "comment": "(* The bool_dec applied to true should resolve to {true = true} + {true = false}, selecting the first branch which results in \"true\". *)" }, { "coq_statement"...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec.
Lemma orb_sym : forall a b : bool, a || b = b || a.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
orb_sym
null
Commutativity of Boolean OR
Asserts the commutative property of the Boolean OR operation, showing that 'a OR b' equals 'b OR a' for all Boolean values.
[ { "coq_statement": "Compute true || false.", "expected_output": "true", "comment": "(* true || false evaluates to true because '||' is logical OR, and true OR anything is true. *)" }, { "coq_statement": "Compute false || true.", "expected_output": "true", "comment": "(* false || true eva...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym.
Lemma orb_false : forall a b : bool, a || b = false -> a = false /\ b = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
orb_false
null
Boolean OR operation resulting in false condition
Given two boolean inputs, if their OR operation equals false, then each individual input must also be false.
[ { "coq_statement": "Compute (true || true).", "expected_output": "true", "comment": "(* The '||' operator performs logical OR operation. true || true evaluates to true. *)" }, { "coq_statement": "Compute (false || true).", "expected_output": "true", "comment": "(* The '||' operator perfo...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false.
Lemma orb_false_l : forall a b : bool, a || b = false -> a = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
orb_false_l
null
Property of Boolean 'or' and falsity in Coq
Describes a condition where Boolean OR operation results in false, necessitating that the first operand must also be false.
[ { "coq_statement": "Compute (orb false true).", "expected_output": "true", "comment": "(* orb false true -> true; since false || true is true *)" }, { "coq_statement": "Compute (orb false false).", "expected_output": "false", "comment": "(* orb false false -> false; since false || false ...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma orb_false_r : forall a b : bool, a || b = false -> b = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
orb_false_r
null
Check if the second boolean is false when the OR operation is false
Confirms when a boolean OR operation results false, the second operand must also be false, given the outcome.
[ { "coq_statement": "Compute orb false false.", "expected_output": "false", "comment": "(* orb false false -> false, since both inputs are false, their disjunction is also false. *)" }, { "coq_statement": "Compute orb true false.", "expected_output": "true", "comment": "(* orb true false ...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma true_orb_intro : forall b1 b2 : bool, b1 || b2 = true -> b1 = true \/ b2 = true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
true_orb_intro
null
Boolean Disjunction Implies Evaluation to True
For boolean values b1 and b2, their disjunction evaluates to true implies either b1 or b2 is true.
[ { "coq_statement": "Compute (true || false).", "expected_output": "true", "comment": "(* true || false evaluates to true because true in a disjunction with any boolean results in true. *)" }, { "coq_statement": "Compute (false || false).", "expected_output": "false", "comment": "(* false...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma and_sym : forall a b : bool, a && b = b && a.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
and_sym
null
Commutativity of Boolean and operation
For all booleans a and b, the logical 'and' operation && is commutative, meaning a && b equals b && a.
[ { "coq_statement": "Compute andb true false.", "expected_output": "false", "comment": "(* true && false = false, based on the logical AND operation behavior. *)" }, { "coq_statement": "Compute andb false true.", "expected_output": "false", "comment": "(* false && true = false, a basic pr...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_false : forall a b : bool, a && b = false -> a = false /\ b = false \/ a = false /\ b = true \/ a = true /\ b = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_false
null
Boolean conjunction resulting in false
For Boolean inputs a and b, if their conjunction is false, then at least one of them must be false.
[ { "coq_statement": "Compute (andb false false).", "expected_output": "false", "comment": "(* andb false false evaluates to false because both inputs are false. This corresponds to the specification that a = false and b = false. *)" }, { "coq_statement": "Compute (andb false true).", "expecte...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_true : forall a b : bool, a && b = true -> a = true /\ b = true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_true
null
Boolean conjunction implies truth of operands
Given two booleans a and b, if their conjunction is true, then both a and b must individually be true.
[ { "coq_statement": "Compute (true && true).", "expected_output": "true", "comment": "When both inputs are true, the result of andb is true, confirming a && b = true in the specification." }, { "coq_statement": "Compute (false && true).", "expected_output": "false", "comment": "When the f...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_true_l : forall a b : bool, a && b = true -> a = true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_true_l
null
Left conjunction truth implies left operand truth
When the conjunction of two Booleans is true, the first Boolean in the expression must also be true.
[ { "coq_statement": "Compute andb true true.", "expected_output": "true", "comment": "(* andb true true -> true because both operands are true. *)" }, { "coq_statement": "Compute (true && true).", "expected_output": "true", "comment": "(* true && true evaluates to true since both operand...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_true_r : forall a b : bool, a && b = true -> b = true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_true_r
null
Truth of Conjunction Implies Right Operand is True
When conjunction of two boolean values results in true, it indicates that the second operand must be true.
[ { "coq_statement": "Compute andb true true.", "expected_output": "true", "comment": "(* andb true true -> true: Both inputs are true, so the andb function returns true. *)" }, { "coq_statement": "Compute andb true false.", "expected_output": "false", "comment": "(* andb true false -> fal...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_negb_true_r : forall a b : bool, a && negb b = true -> b = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_negb_true_r
null
Negated second operand implies false in conjunction
Given two booleans, if their conjunction with negated second equals true, the second boolean must be false.
[ { "coq_statement": "Compute (andb true (negb false)).", "expected_output": "true", "comment": "(* andb true (negb false) simplifies to true && true which results in true *)" }, { "coq_statement": "Compute (andb false (negb true)).", "expected_output": "false", "comment": "(* andb false (...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma andb_negb_true_l : forall a b : bool, negb a && b = true -> a = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
andb_negb_true_l
null
Negation and conjunction yielding true implies first operand is false
Negation of a boolean a logically 'anded' with b equaling true implies that the original boolean a must be false.
[ { "coq_statement": "Compute (andb (negb true) true).", "expected_output": "false", "comment": "(* Since negb true is false, and andb false true is false, the result is false. *)" }, { "coq_statement": "Compute (andb (negb false) true).", "expected_output": "true", "comment": "(* negb fal...
Require Export Bool. Require Export IfProp. Require Export Zerob. simple induction b; auto with bool. Qed. Hint Resolve bool_dec. simple induction a; simple induction b; auto with bool. Qed. Hint Immediate orb_sym. simple induction a; simple induction b; auto with bool. Qed. Hint Resolve orb_false. intros; elim (orb_f...
Lemma no_true_false : forall b : bool, b = false -> b <> true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Bool.v
no_true_false
null
Non-equality of boolean values under condition
For any boolean 'b', if 'b' is 'false', then 'b' cannot be 'true', establishing exclusivity between the two values.
[ { "coq_statement": "Compute (if false then true else false).", "expected_output": "false", "comment": "(if false then true else false) -> false, because the condition is false thus the else branch is taken." }, { "coq_statement": "Compute (if true then false else true).", "expected_output": ...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt.
Lemma zerob_If : forall (b : bool) (x y : nat), zerob (if_bool _ b x y) = true -> x <> 0 -> b = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
zerob_If
if_bool = fun (C : Set) (b : bool) (x y : C) => if b then x else y : forall (C : Set) (_ : bool) (_ : C) (_ : C), C
null
Conditional Boolean Check for Zero Mapping to False
Evaluates condition where the zero check of a conditional result is true, leading to the conclusion that the condition must be false if the first result is nonzero.
[ { "coq_statement": "Compute if_bool nat true 0 1.", "expected_output": "0", "comment": "(* if_bool nat true 0 1 evaluates to 0 because when b is true, it selects the first option, 0. *)" }, { "coq_statement": "Compute if_bool nat false 2 3.", "expected_output": "3", "comment": "(* if_boo...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed.
Lemma lt_no_zerob : forall n : nat, 0 < n -> zerob n <> true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
lt_no_zerob
null
Proof that positive numbers are not zero
Demonstrates that for any natural number greater than zero, the function zerob returns false, indicating it is not zero.
[ { "coq_statement": "Compute zerob 1.", "expected_output": "false", "comment": "(* For n = 1, since zerob is true iff n = 0, zerob 1 should be false. *)" }, { "coq_statement": "Compute zerob 2.", "expected_output": "false", "comment": "(* For n = 2, n is greater than zero, so zerob 2 shou...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed. Qed. Hint Resolve lt_no_zerob.
Lemma zerob_pred_no : forall n : nat, zerob (pred n) = false -> n <> 0.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
zerob_pred_no
null
Non-zero predecessor implies zerob false
For any natural number n, if zerob of its predecessor is false, then n cannot be zero, based on zerob.
[ { "coq_statement": "Compute zerob (pred 1).", "expected_output": "false", "comment": "(* zerob (pred 1) -> false because the predecessor of 1 is 0, and zerob 0 is true. Since we need zerob (pred n) = false, n cannot be 0. *)" }, { "coq_statement": "Compute zerob (pred 3).", "expected_output"...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed. Qed. Hint Resolve lt_no_zerob. simple induction n; auto with bool. Qed. Hint Resolve zerob_pre...
Lemma zerob_lt : forall n : nat, zerob n = false -> 0 < n.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
zerob_lt
null
Non-zero Natural Numbers Are Greater Than Zero
Given a natural number n, if n's zero checker returns false, it implies n is strictly positive, i.e., greater than zero.
[ { "coq_statement": "Compute zerob 3.", "expected_output": "false", "comment": "(* Since 3 is greater than 0, zerob 3 returns false indicating it is not zero. This aligns with conditions for zerob_lt to apply, confirming 0 < 3. *)" }, { "coq_statement": "Compute zerob 0.", "expected_output": ...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed. Qed. Hint Resolve lt_no_zerob. simple induction n; auto with bool. Qed. Hint Resolve zerob_pre...
Lemma no_zerob_true : forall n : nat, n <> 0 -> zerob n <> true.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
no_zerob_true
null
Non-zero natural numbers do not satisfy 'zerob' as true
For any natural number n, if n is not zero, then zerob applied to n results in false, not true.
[ { "coq_statement": "Compute (zerob 1).", "expected_output": "false", "comment": "(* zerob 1 returns false because 1 is not zero. *)" }, { "coq_statement": "Compute (zerob 0).", "expected_output": "true", "comment": "(* zerob 0 returns true because 0 is zero. *)" }, { "coq_stateme...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed. Qed. Hint Resolve lt_no_zerob. simple induction n; auto with bool. Qed. Hint Resolve zerob_pre...
Lemma x_1_or_y_0 : forall x y : nat, zerob (pred x) || zerob y = true -> x <> 0 -> x = 1 \/ y = 0.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
x_1_or_y_0
null
Characterizing Zero Behavior for Predecessor and Disjunction
Given natural numbers x and y, if zerob of x's predecessor or y holds true, with x non-zero, then x equals 1 or y equals 0.
[ { "coq_statement": "Compute (zerob (pred 2) || zerob 0).", "expected_output": "true", "comment": "(* With x = 2 and y = 0, zerob (pred x) = zerob 1 = false, zerob y = zerob 0 = true, hence their logical OR is true, fulfilling the condition for the lemma. *)" }, { "coq_statement": "Compute (zerob...
Require Export Lib_Bool. Require Export Lib_Prop. Require Export Lib_Set_Products. Require Export Lt. simple induction b; simpl in |- *; intros; auto. absurd (x <> 0). apply no_no_A; apply zerob_true_elim; auto. trivial. Qed. Qed. Hint Resolve lt_no_zerob. simple induction n; auto with bool. Qed. Hint Resolve zerob_pre...
Lemma zerob_pred_false : forall n : nat, zerob (pred n) = false -> zerob n = false.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Boolean/Lib_Zerob.v
zerob_pred_false
null
Relation between zerob of predecessor and zerob of a number
For any natural number n, if zerob of pred(n) is false, then zerob of n is also false.
[ { "coq_statement": "Compute zerob (pred 0).", "expected_output": "false", "comment": "(* zerob (pred 0) evaluates to false because pred 0 is 0 and zerob 0 is true, thus the statement 'zerob (pred n) = false' is correct for n=0. *)" }, { "coq_statement": "Compute zerob (pred 1).", "expected_o...
Require Export Lib_Exp. Definition Square (n : nat) := n * n.
Lemma Square_exp_2 : forall n : nat, Square (exp_2 n) = exp_2 (2 * n).
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Square.v
Square_exp_2
Square = fun n : nat => Init.Nat.mul n n : forall _ : nat, nat exp_2 = fix exp_2 (n : nat) : nat := match n with | O => S O | S p => Init.Nat.mul (S (S O)) (exp_2 p) end : forall _ : nat, nat
null
Quadratic Exponentiation Equivalence
Equates squaring the exponentiation of n with the exponentiation of twice n, demonstrating potential mathematical equivalence or transformation.
[ { "coq_statement": "Compute Square (exp_2 O).", "expected_output": "1", "comment": "(* Square (exp_2 0) -> exp_2 O is 1 (2^0), Square of 1 is 1 *)" }, { "coq_statement": "Compute Square (exp_2 1).", "expected_output": "4", "comment": "(* Square (exp_2 1) -> exp_2 1 is 2 (2^1), Square of ...
Require Export Lib_Exp. Definition Square (n : nat) := n * n. intro. unfold Square in |- *. elim exp_2_n_plus_m. rewrite plus_mult; reflexivity. Qed. Hint Resolve Square_exp_2.
Lemma eq_Square_exp_n : forall n : nat, Square n = exp_n n 2.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Square.v
eq_Square_exp_n
exp_n = fix exp_n (n m : nat) {struct m} : nat := match m with | O => S O | S p => Init.Nat.mul n (exp_n n p) end : forall (_ : nat) (_ : nat), nat Square = fun n : nat => Init.Nat.mul n n : forall _ : nat, nat
null
Equality of Square and exp_n with exponent 2
Square of a natural number is equal to raising the number to the power of 2 using recursive function exp_n.
[ { "coq_statement": "Compute Square 0.", "expected_output": "0", "comment": "(* Square 0 = 0 * 0 = 0, which matches exp_n 0 2 because exp_n 0 2 executes 0 * 1 = 0 *)" }, { "coq_statement": "Compute Square 1.", "expected_output": "1", "comment": "(* Square 1 = 1 * 1 = 1, which matches exp_...
Require Export Lib_Exp. Definition Square (n : nat) := n * n. intro. unfold Square in |- *. elim exp_2_n_plus_m. rewrite plus_mult; reflexivity. Qed. Hint Resolve Square_exp_2. unfold Square in |- *. simpl in |- *. intro; elim (mult_comm 1 n); simpl in |- *; auto with arith. Qed. Hint Resolve eq_Square_exp_n.
Lemma Square_inc : forall n m : nat, n <= m -> Square n <= Square m.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Square.v
Square_inc
Square = fun n : nat => Init.Nat.mul n n : forall _ : nat, nat
null
Monotonicity of the Square Function
Given natural numbers n and m, if n is less than or equal to m, then Square n is less than or equal to Square m.
[ { "coq_statement": "Compute Square 0.", "expected_output": "0", "comment": "(* Square 0 = 0 * 0 = 0. The square of zero should return zero as expected. *)" }, { "coq_statement": "Compute Square 1.", "expected_output": "1", "comment": "(* Square 1 = 1 * 1 = 1. The square of one should yie...
Require Export Lib_Exp. Definition Square (n : nat) := n * n. intro. unfold Square in |- *. elim exp_2_n_plus_m. rewrite plus_mult; reflexivity. Qed. Hint Resolve Square_exp_2. unfold Square in |- *. simpl in |- *. intro; elim (mult_comm 1 n); simpl in |- *; auto with arith. Qed. Hint Resolve eq_Square_exp_n. intros. u...
Lemma Square_strict_inc : forall n m : nat, n < m -> Square n < Square m.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Square.v
Square_strict_inc
Square = fun n : nat => Init.Nat.mul n n : forall _ : nat, nat
null
Strictly Increasing Property of Squaring Function
For natural numbers n and m, if n is less than m, then the square of n is less than the square of m.
[ { "coq_statement": "Compute Square 0.", "expected_output": "0", "comment": "(* Square 0 -> 0 * 0 = 0: testing edge case with the smallest natural number. *)" }, { "coq_statement": "Compute Square 1.", "expected_output": "1", "comment": "(* Square 1 -> 1 * 1 = 1: another edge case with th...
Require Export Lib_Exp. Definition Square (n : nat) := n * n. intro. unfold Square in |- *. elim exp_2_n_plus_m. rewrite plus_mult; reflexivity. Qed. Hint Resolve Square_exp_2. unfold Square in |- *. simpl in |- *. intro; elim (mult_comm 1 n); simpl in |- *; auto with arith. Qed. Hint Resolve eq_Square_exp_n. intros. u...
Lemma le_n_Square : forall n : nat, n <= Square n.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Square.v
le_n_Square
Square = fun n : nat => Init.Nat.mul n n : forall _ : nat, nat
null
Inequality relation between a natural number and its square.
For any natural number n, it holds that n is less than or equal to the result of n squared.
[ { "coq_statement": "Compute Square 0.", "expected_output": "0", "comment": "(* Square 0 -> 0 because 0 * 0 = 0 *)" }, { "coq_statement": "Compute Square 1.", "expected_output": "1", "comment": "(* Square 1 -> 1 because 1 * 1 = 1 *)" }, { "coq_statement": "Compute Square 2.", ...
Require Export Lib_Eq_Le_Lt. Require Export Lib_Prop.
Lemma pred_diff_O : forall n : nat, n <> 0 -> n <> 1 -> pred n <> 0.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Pred.v
pred_diff_O
null
Non-zero predecessor of a natural number given conditions
Establishes that for any natural number greater than one, its predecessor is non-zero under certain non-zero conditions.
[ { "coq_statement": "Compute pred 2.", "expected_output": "1", "comment": "(* pred of 2 is 1; since 2 > 1, pred 2 is not 0, which aligns with pred_diff_O. *)" }, { "coq_statement": "Compute pred 3.", "expected_output": "2", "comment": "(* pred of 3 is 2; since 3 > 1, pred 3 is not 0, sati...
Require Export Lib_Eq_Le_Lt. Require Export Lib_Prop. simple induction n; auto with arith. Qed. Hint Resolve pred_diff_O.
Lemma S_pred_n : forall n : nat, 1 <= n -> S (pred n) = n.
coq-projects/coqgym/coq-projects/hardware/Libraries/Lib_Arithmetic/Lib_Pred.v
S_pred_n
null
Relationship between number and successor of its predecessor
For any natural number n greater than or equal to 1, the successor of its predecessor equals the original number.
[ { "coq_statement": "Compute S (pred 1).", "expected_output": "1", "comment": "(* S (pred 1) should be 1 because pred 1 is 0 and S 0 is 1. This respects the condition 1 <= n. *)" }, { "coq_statement": "Compute S (pred 2).", "expected_output": "2", "comment": "(* S (pred 2) should be 2 bec...
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