Context stringlengths 285 157k | file_name stringlengths 21 79 | start int64 14 3.67k | end int64 18 3.69k | theorem stringlengths 25 2.71k | proof stringlengths 5 10.6k |
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/-
Copyright (c) 2022 Mantas Bakšys. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mantas Bakšys
-/
import Mathlib.Algebra.BigOperators.Group.Finset
import Mathlib.Algebra.Order.Module.OrderedSMul
import Mathlib.Algebra.Order.Group.Instances
import Mathlib.Data.Prod.L... | Mathlib/Algebra/Order/Rearrangement.lean | 308 | 310 | theorem Antivary.sum_smul_lt_sum_smul_comp_perm_iff (hfg : Antivary f g) :
((∑ i, f i • g i) < ∑ i, f i • g (σ i)) ↔ ¬Antivary f (g ∘ σ) := by |
simp [(hfg.antivaryOn _).sum_smul_lt_sum_smul_comp_perm_iff fun _ _ ↦ mem_univ _]
|
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Finset.Image
import Mathlib.Data.List.FinRange
#align_import data.fintype.basic from "leanprover-community/mathlib"@"d78597269638367c3863d40d4510... | Mathlib/Data/Fintype/Basic.lean | 268 | 270 | theorem insert_inj_on' (s : Finset α) : Set.InjOn (fun a => insert a s) (sᶜ : Finset α) := by |
rw [coe_compl]
exact s.insert_inj_on
|
/-
Copyright (c) 2021 Adam Topaz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Adam Topaz
-/
import Mathlib.CategoryTheory.Sites.Sheaf
#align_import category_theory.sites.plus from "leanprover-community/mathlib"@"70fd9563a21e7b963887c9360bd29b2393e6225a"
/-!
# The... | Mathlib/CategoryTheory/Sites/Plus.lean | 323 | 330 | theorem plus_hom_ext {P Q : Cᵒᵖ ⥤ D} (η γ : J.plusObj P ⟶ Q) (hQ : Presheaf.IsSheaf J Q)
(h : J.toPlus P ≫ η = J.toPlus P ≫ γ) : η = γ := by |
have : γ = J.plusLift (J.toPlus P ≫ γ) hQ := by
apply plusLift_unique
rfl
rw [this]
apply plusLift_unique
exact h
|
/-
Copyright (c) 2018 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl
-/
import Mathlib.Algebra.Order.BigOperators.Ring.Finset
import Mathlib.Data.Nat.Totient
import Mathlib.GroupTheory.OrderOfElement
import Mathlib.GroupTheory.Subgroup.Si... | Mathlib/GroupTheory/SpecificGroups/Cyclic.lean | 178 | 185 | theorem isCyclic_of_surjective {H G F : Type*} [Group H] [Group G] [hH : IsCyclic H]
[FunLike F H G] [MonoidHomClass F H G] (f : F) (hf : Function.Surjective f) :
IsCyclic G := by |
obtain ⟨x, hx⟩ := hH
refine ⟨f x, fun a ↦ ?_⟩
obtain ⟨a, rfl⟩ := hf a
obtain ⟨n, rfl⟩ := hx a
exact ⟨n, (map_zpow _ _ _).symm⟩
|
/-
Copyright (c) 2015, 2017 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Robert Y. Lewis, Johannes Hölzl, Mario Carneiro, Sébastien Gouëzel
-/
import Mathlib.Topology.EMetricSpace.Basic
import Mathlib.Topology.Bornology.Constructions
imp... | Mathlib/Topology/MetricSpace/PseudoMetric.lean | 1,979 | 1,980 | theorem dist_le_pi_dist (f g : ∀ b, π b) (b : β) : dist (f b) (g b) ≤ dist f g := by |
simp only [dist_nndist, NNReal.coe_le_coe, nndist_le_pi_nndist f g b]
|
/-
Copyright (c) 2020 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rémy Degenne, Sébastien Gouëzel
-/
import Mathlib.Analysis.NormedSpace.IndicatorFunction
import Mathlib.MeasureTheory.Function.EssSup
import Mathlib.MeasureTheory.Function.AEEqFun
import... | Mathlib/MeasureTheory/Function/LpSeminorm/Basic.lean | 598 | 600 | theorem snormEssSup_mono_measure (f : α → F) (hμν : ν ≪ μ) : snormEssSup f ν ≤ snormEssSup f μ := by |
simp_rw [snormEssSup]
exact essSup_mono_measure hμν
|
/-
Copyright (c) 2018 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Mario Carneiro, Simon Hudon
-/
import Mathlib.Data.PFunctor.Multivariate.Basic
import Mathlib.Data.PFunctor.Univariate.M
#align_import data.pfunctor.multivariate.M from ... | Mathlib/Data/PFunctor/Multivariate/M.lean | 318 | 325 | theorem M.dest_map {α β : TypeVec n} (g : α ⟹ β) (x : P.M α) :
M.dest P (g <$$> x) = (appendFun g fun x => g <$$> x) <$$> M.dest P x := by |
cases' x with a f
rw [map_eq]
conv =>
rhs
rw [M.dest, M.dest', map_eq, appendFun_comp_splitFun]
rfl
|
/-
Copyright (c) 2022 Michael Stoll. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Michael Stoll
-/
import Mathlib.Algebra.CharP.Basic
import Mathlib.Data.Fintype.Units
import Mathlib.GroupTheory.OrderOfElement
#align_import number_theory.legendre_symbol.mul_characte... | Mathlib/NumberTheory/MulChar/Basic.lean | 579 | 593 | theorem sum_one_eq_card_units [DecidableEq R] :
(∑ a, (1 : MulChar R R') a) = Fintype.card Rˣ := by |
calc
(∑ a, (1 : MulChar R R') a) = ∑ a : R, if IsUnit a then 1 else 0 :=
Finset.sum_congr rfl fun a _ => ?_
_ = ((Finset.univ : Finset R).filter IsUnit).card := Finset.sum_boole _ _
_ = (Finset.univ.map ⟨((↑) : Rˣ → R), Units.ext⟩).card := ?_
_ = Fintype.card Rˣ := congr_arg _ (Finset.card_map ... |
/-
Copyright (c) 2023 Shogo Saito. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Shogo Saito. Adapted for mathlib by Hunter Monroe
-/
import Mathlib.Algebra.BigOperators.Ring.List
import Mathlib.Data.Nat.ModEq
import Mathlib.Data.Nat.GCD.BigOperators
/-!
# Chinese Re... | Mathlib/Data/Nat/ChineseRemainder.lean | 93 | 105 | theorem chineseRemainderOfList_modEq_unique (l : List ι)
(co : l.Pairwise (Coprime on s)) {z} (hz : ∀ i ∈ l, z ≡ a i [MOD s i]) :
z ≡ chineseRemainderOfList a s l co [MOD (l.map s).prod] := by |
induction' l with i l ih
· simp [modEq_one]
· simp only [List.map_cons, List.prod_cons, chineseRemainderOfList]
have : Coprime (s i) (l.map s).prod := by
simp only [coprime_list_prod_right_iff, List.mem_map, forall_exists_index, and_imp,
forall_apply_eq_imp_iff₂]
intro j hj
exact (L... |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Patrick Massot
-/
import Mathlib.GroupTheory.GroupAction.ConjAct
import Mathlib.GroupTheory.GroupAction.Quotient
import Mathlib.GroupTheory.QuotientGrou... | Mathlib/Topology/Algebra/Group/Basic.lean | 605 | 606 | theorem tendsto_inv_nhdsWithin_Iio_inv {a : H} : Tendsto Inv.inv (𝓝[<] a⁻¹) (𝓝[>] a) := by |
simpa only [inv_inv] using @tendsto_inv_nhdsWithin_Iio _ _ _ _ a⁻¹
|
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
-/
import Mathlib.Algebra.MonoidAlgebra.Degree
import Mathlib.Algebra.Polynomial.Coeff
import Mathlib.Algebra.Polynomial.Mono... | Mathlib/Algebra/Polynomial/Degree/Definitions.lean | 418 | 425 | theorem sum_fin [AddCommMonoid S] (f : ℕ → R → S) (hf : ∀ i, f i 0 = 0) {n : ℕ} {p : R[X]}
(hn : p.degree < n) : (∑ i : Fin n, f i (p.coeff i)) = p.sum f := by |
by_cases hp : p = 0
· rw [hp, sum_zero_index, Finset.sum_eq_zero]
intro i _
exact hf i
rw [sum_over_range' _ hf n ((natDegree_lt_iff_degree_lt hp).mpr hn),
Fin.sum_univ_eq_sum_range fun i => f i (p.coeff i)]
|
/-
Copyright (c) 2021 Johan Commelin. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin
-/
import Mathlib.Algebra.Group.Equiv.TypeTags
import Mathlib.GroupTheory.FreeAbelianGroup
import Mathlib.GroupTheory.FreeGroup.IsFreeGroup
import Mathlib.LinearAlgebra.... | Mathlib/GroupTheory/FreeAbelianGroupFinsupp.lean | 54 | 59 | theorem FreeAbelianGroup.toFinsupp_comp_toFreeAbelianGroup :
toFinsupp.comp toFreeAbelianGroup = AddMonoidHom.id (X →₀ ℤ) := by |
ext x y; simp only [AddMonoidHom.id_comp]
rw [AddMonoidHom.comp_assoc, Finsupp.toFreeAbelianGroup_comp_singleAddHom]
simp only [toFinsupp, AddMonoidHom.coe_comp, Finsupp.singleAddHom_apply, Function.comp_apply,
one_smul, lift.of, AddMonoidHom.flip_apply, smulAddHom_apply, AddMonoidHom.id_apply]
|
/-
Copyright (c) 2019 Jan-David Salchow. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jan-David Salchow, Sébastien Gouëzel, Jean Lo
-/
import Mathlib.Analysis.NormedSpace.OperatorNorm.Basic
/-!
# Operator norm as an `NNNorm`
Operator norm as an `NNNorm`, i.e. takin... | Mathlib/Analysis/NormedSpace/OperatorNorm/NNNorm.lean | 210 | 220 | theorem sSup_closed_unit_ball_eq_nnnorm {𝕜 𝕜₂ E F : Type*} [NormedAddCommGroup E]
[SeminormedAddCommGroup F] [DenselyNormedField 𝕜] [NontriviallyNormedField 𝕜₂] {σ₁₂ : 𝕜 →+* 𝕜₂}
[NormedSpace 𝕜 E] [NormedSpace 𝕜₂ F] [RingHomIsometric σ₁₂] (f : E →SL[σ₁₂] F) :
sSup ((fun x => ‖f x‖₊) '' closedBall 0 1... |
have hbdd : ∀ y ∈ (fun x => ‖f x‖₊) '' closedBall 0 1, y ≤ ‖f‖₊ := by
rintro - ⟨x, hx, rfl⟩
exact f.unit_le_opNorm x (mem_closedBall_zero_iff.1 hx)
refine le_antisymm (csSup_le ((nonempty_closedBall.mpr zero_le_one).image _) hbdd) ?_
rw [← sSup_unit_ball_eq_nnnorm]
exact csSup_le_csSup ⟨‖f‖₊, hbdd⟩ ((n... |
/-
Copyright (c) 2021 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.MeasureTheory.Measure.Trim
import Mathlib.MeasureTheory.MeasurableSpace.CountablyGenerated
#align_import measure_theory.measure.ae_measurable fr... | Mathlib/MeasureTheory/Measure/AEMeasurable.lean | 238 | 243 | theorem aemeasurable_const' (h : ∀ᵐ (x) (y) ∂μ, f x = f y) : AEMeasurable f μ := by |
rcases eq_or_ne μ 0 with (rfl | hμ)
· exact aemeasurable_zero_measure
· haveI := ae_neBot.2 hμ
rcases h.exists with ⟨x, hx⟩
exact ⟨const α (f x), measurable_const, EventuallyEq.symm hx⟩
|
/-
Copyright (c) 2021 Eric Wieser. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Eric Wieser
-/
import Mathlib.GroupTheory.Perm.Cycle.Type
import Mathlib.GroupTheory.Perm.Option
import Mathlib.Logic.Equiv.Fin
import Mathlib.Logic.Equiv.Fintype
#align_import group_the... | Mathlib/GroupTheory/Perm/Fin.lean | 257 | 276 | theorem succAbove_cycleRange {n : ℕ} (i j : Fin n) :
i.succ.succAbove (i.cycleRange j) = swap 0 i.succ j.succ := by |
cases n
· rcases j with ⟨_, ⟨⟩⟩
rcases lt_trichotomy j i with (hlt | heq | hgt)
· have : castSucc (j + 1) = j.succ := by
ext
rw [coe_castSucc, val_succ, Fin.val_add_one_of_lt (lt_of_lt_of_le hlt i.le_last)]
rw [Fin.cycleRange_of_lt hlt, Fin.succAbove_of_castSucc_lt, this, swap_apply_of_ne_of_ne... |
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Algebra.Order.Monoid.Unbundled.MinMax
import Mathlib.Algebra.Order.Monoid.WithTop
import Mathlib.Data.Finset.Image
import Mathlib.Data.Multiset.Fold
#... | Mathlib/Data/Finset/Fold.lean | 50 | 52 | theorem fold_cons (h : a ∉ s) : (cons a s h).fold op b f = f a * s.fold op b f := by |
dsimp only [fold]
rw [cons_val, Multiset.map_cons, fold_cons_left]
|
/-
Copyright (c) 2022 Yaël Dillies, Bhavik Mehta. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yaël Dillies, Bhavik Mehta
-/
import Mathlib.Order.Partition.Equipartition
#align_import combinatorics.simple_graph.regularity.equitabilise from "leanprover-community/math... | Mathlib/Combinatorics/SimpleGraph/Regularity/Equitabilise.lean | 205 | 215 | theorem exists_equipartition_card_eq (hn : n ≠ 0) (hs : n ≤ s.card) :
∃ P : Finpartition s, P.IsEquipartition ∧ P.parts.card = n := by |
rw [← pos_iff_ne_zero] at hn
have : (n - s.card % n) * (s.card / n) + s.card % n * (s.card / n + 1) = s.card := by
rw [tsub_mul, mul_add, ← add_assoc,
tsub_add_cancel_of_le (Nat.mul_le_mul_right _ (mod_lt _ hn).le), mul_one, add_comm,
mod_add_div]
refine
⟨(indiscrete (card_pos.1 <| hn.trans_l... |
/-
Copyright (c) 2022 María Inés de Frutos-Fernández. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Antoine Chambert-Loir, María Inés de Frutos-Fernández
-/
import Mathlib.Algebra.GradedMonoid
import Mathlib.Algebra.Order.Monoid.Canonical.Defs
import Mathlib.Algebra.M... | Mathlib/RingTheory/MvPolynomial/WeightedHomogeneous.lean | 168 | 173 | theorem weightedHomogeneousSubmodule_eq_finsupp_supported (w : σ → M) (m : M) :
weightedHomogeneousSubmodule R w m = Finsupp.supported R R { d | weightedDegree w d = m } := by |
ext x
rw [mem_supported, Set.subset_def]
simp only [Finsupp.mem_support_iff, mem_coe]
rfl
|
/-
Copyright (c) 2022 Xavier Roblot. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Alex J. Best, Xavier Roblot
-/
import Mathlib.Analysis.Complex.Polynomial
import Mathlib.NumberTheory.NumberField.Norm
import Mathlib.NumberTheory.NumberField.Basic
import Mathlib.RingT... | Mathlib/NumberTheory/NumberField/Embeddings.lean | 367 | 369 | theorem embedding_mk_eq (φ : K →+* ℂ) :
embedding (mk φ) = φ ∨ embedding (mk φ) = ComplexEmbedding.conjugate φ := by |
rw [@eq_comm _ _ φ, @eq_comm _ _ (ComplexEmbedding.conjugate φ), ← mk_eq_iff, mk_embedding]
|
/-
Copyright (c) 2021 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen
-/
import Mathlib.Algebra.Polynomial.Degree.CardPowDegree
import Mathlib.Analysis.SpecialFunctions.Pow.Real
import Mathlib.NumberTheory.ClassNumber.AdmissibleAbsoluteValue
imp... | Mathlib/NumberTheory/ClassNumber/AdmissibleCardPowDegree.lean | 178 | 243 | theorem exists_partition_polynomial_aux (n : ℕ) {ε : ℝ} (hε : 0 < ε) {b : Fq[X]} (hb : b ≠ 0)
(A : Fin n → Fq[X]) : ∃ t : Fin n → Fin (Fintype.card Fq ^ ⌈-log ε / log (Fintype.card Fq)⌉₊),
∀ i₀ i₁ : Fin n, t i₀ = t i₁ ↔
(cardPowDegree (A i₁ % b - A i₀ % b) : ℝ) < cardPowDegree b • ε := by |
have hbε : 0 < cardPowDegree b • ε := by
rw [Algebra.smul_def, eq_intCast]
exact mul_pos (Int.cast_pos.mpr (AbsoluteValue.pos _ hb)) hε
-- We go by induction on the size `A`.
induction' n with n ih
· refine ⟨finZeroElim, finZeroElim⟩
-- Show `anti_archimedean` also holds for real distances.
have an... |
/-
Copyright (c) 2022 Michael Stoll. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Michael Stoll, Thomas Zhu, Mario Carneiro
-/
import Mathlib.NumberTheory.LegendreSymbol.QuadraticReciprocity
#align_import number_theory.legendre_symbol.jacobi_symbol from "leanprover-... | Mathlib/NumberTheory/LegendreSymbol/JacobiSymbol.lean | 331 | 337 | theorem value_at (a : ℤ) {R : Type*} [CommSemiring R] (χ : R →* ℤ)
(hp : ∀ (p : ℕ) (pp : p.Prime), p ≠ 2 → @legendreSym p ⟨pp⟩ a = χ p) {b : ℕ} (hb : Odd b) :
J(a | b) = χ b := by |
conv_rhs => rw [← prod_factors hb.pos.ne', cast_list_prod, map_list_prod χ]
rw [jacobiSym, List.map_map, ← List.pmap_eq_map Nat.Prime _ _ fun _ => prime_of_mem_factors]
congr 1; apply List.pmap_congr
exact fun p h pp _ => hp p pp (hb.ne_two_of_dvd_nat <| dvd_of_mem_factors h)
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro
-/
import Mathlib.Topology.Constructions
import Mathlib.Topology.ContinuousOn
#align_import topology.bases from "leanprover-community/mathlib"@"bcfa7268... | Mathlib/Topology/Bases.lean | 881 | 883 | theorem isOpen_sUnion_countable [SecondCountableTopology α] (S : Set (Set α))
(H : ∀ s ∈ S, IsOpen s) : ∃ T : Set (Set α), T.Countable ∧ T ⊆ S ∧ ⋃₀ T = ⋃₀ S := by |
simpa only [and_left_comm, sUnion_eq_biUnion] using isOpen_biUnion_countable S id H
|
/-
Copyright (c) 2019 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Nat.Choose.Basic
import Mathlib.Data.List.Perm
import Mathlib.Data.List.Range
#align_import data.list.sublists from "leanprover-community/mathlib... | Mathlib/Data/List/Sublists.lean | 385 | 386 | theorem nodup_sublists' {l : List α} : Nodup (sublists' l) ↔ Nodup l := by |
rw [sublists'_eq_sublists, nodup_map_iff reverse_injective, nodup_sublists, nodup_reverse]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Jeremy Avigad, Yury Kudryashov, Patrick Massot
-/
import Mathlib.Algebra.BigOperators.Group.Finset
import Mathlib.Algebra.Order.Field.Defs
import Mathlib.Algebra.Order.... | Mathlib/Order/Filter/AtTopBot.lean | 1,136 | 1,138 | theorem tendsto_const_mul_atBot_of_pos (hr : 0 < r) :
Tendsto (fun x => r * f x) l atBot ↔ Tendsto f l atBot := by |
simpa only [← mul_neg, ← tendsto_neg_atTop_iff] using tendsto_const_mul_atTop_of_pos hr
|
/-
Copyright (c) 2020 Thomas Browning, Patrick Lutz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Thomas Browning, Patrick Lutz
-/
import Mathlib.Algebra.Algebra.Subalgebra.Directed
import Mathlib.FieldTheory.IntermediateField
import Mathlib.FieldTheory.Separable
imp... | Mathlib/FieldTheory/Adjoin.lean | 646 | 650 | theorem _root_.isSplittingField_iff_intermediateField {p : F[X]} :
p.IsSplittingField F E ↔ p.Splits (algebraMap F E) ∧ adjoin F (p.rootSet E) = ⊤ := by |
rw [← toSubalgebra_injective.eq_iff,
adjoin_algebraic_toSubalgebra fun _ ↦ isAlgebraic_of_mem_rootSet]
exact ⟨fun ⟨spl, adj⟩ ↦ ⟨spl, adj⟩, fun ⟨spl, adj⟩ ↦ ⟨spl, adj⟩⟩
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Patrick Massot
-/
import Mathlib.Topology.Order
#align_import topology.maps from "leanprover-community/mathlib"@"d91e7f7a7f1c7e9f0e18fdb6bde4f652004c73... | Mathlib/Topology/Maps.lean | 208 | 209 | theorem Embedding.of_comp_iff (hg : Embedding g) : Embedding (g ∘ f) ↔ Embedding f := by |
simp_rw [embedding_iff, hg.toInducing.of_comp_iff, hg.inj.of_comp_iff f]
|
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro, Johannes Hölzl, Sander Dahmen, Scott Morrison, Chris Hughes, Anne Baanen
-/
import Mathlib.LinearAlgebra.Dimension.Free
import Mathlib.Algebra.Module.Torsion
#align_im... | Mathlib/LinearAlgebra/Dimension/Constructions.lean | 538 | 541 | theorem subalgebra_top_rank_eq_submodule_top_rank :
Module.rank F (⊤ : Subalgebra F E) = Module.rank F (⊤ : Submodule F E) := by |
rw [← Algebra.top_toSubmodule]
rfl
|
/-
Copyright (c) 2020 Joseph Myers. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Myers
-/
import Mathlib.Geometry.Euclidean.Circumcenter
#align_import geometry.euclidean.monge_point from "leanprover-community/mathlib"@"1a4df69ca1a9a0e5e26bfe12e2b92814216016d0... | Mathlib/Geometry/Euclidean/MongePoint.lean | 297 | 327 | theorem eq_mongePoint_of_forall_mem_mongePlane {n : ℕ} {s : Simplex ℝ P (n + 2)} {i₁ : Fin (n + 3)}
{p : P} (h : ∀ i₂, i₁ ≠ i₂ → p ∈ s.mongePlane i₁ i₂) : p = s.mongePoint := by |
rw [← @vsub_eq_zero_iff_eq V]
have h' : ∀ i₂, i₁ ≠ i₂ → p -ᵥ s.mongePoint ∈
(ℝ ∙ s.points i₁ -ᵥ s.points i₂)ᗮ ⊓ vectorSpan ℝ (Set.range s.points) := by
intro i₂ hne
rw [← s.direction_mongePlane, vsub_right_mem_direction_iff_mem s.mongePoint_mem_mongePlane]
exact h i₂ hne
have hi : p -ᵥ s.mongeP... |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Patrick Massot, Yury Kudryashov, Rémy Degenne
-/
import Mathlib.Order.MinMax
import Mathlib.Data.Set.Subsingleton
import Mathlib.Tactic.Says
#align_imp... | Mathlib/Order/Interval/Set/Basic.lean | 1,838 | 1,840 | theorem Ioo_inter_Iio : Ioo a b ∩ Iio c = Ioo a (min b c) := by |
ext
simp_rw [mem_inter_iff, mem_Ioo, mem_Iio, lt_min_iff, and_assoc]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro
-/
import Mathlib.MeasureTheory.Measure.NullMeasurable
import Mathlib.MeasureTheory.MeasurableSpace.Basic
import Mathlib.Topology.Algebra.Order.LiminfLim... | Mathlib/MeasureTheory/Measure/MeasureSpace.lean | 1,572 | 1,576 | theorem sum_add_sum_compl (s : Set ι) (μ : ι → Measure α) :
((sum fun i : s => μ i) + sum fun i : ↥sᶜ => μ i) = sum μ := by |
ext1 t ht
simp only [add_apply, sum_apply _ ht]
exact tsum_add_tsum_compl (f := fun i => μ i t) ENNReal.summable ENNReal.summable
|
/-
Copyright (c) 2018 Simon Hudon. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro, Johannes Hölzl, Simon Hudon, Kenny Lau
-/
import Mathlib.Data.Multiset.Bind
import Mathlib.Control.Traversable.Lemmas
import Mathlib.Control.Traversable.Instances
#align_... | Mathlib/Data/Multiset/Functor.lean | 137 | 143 | theorem naturality {G H : Type _ → Type _} [Applicative G] [Applicative H] [CommApplicative G]
[CommApplicative H] (eta : ApplicativeTransformation G H) {α β : Type _} (f : α → G β)
(x : Multiset α) : eta (traverse f x) = traverse (@eta _ ∘ f) x := by |
refine Quotient.inductionOn x ?_
intro
simp only [quot_mk_to_coe, traverse, lift_coe, Function.comp_apply,
ApplicativeTransformation.preserves_map, LawfulTraversable.naturality]
|
/-
Copyright (c) 2020 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rémy Degenne, Sébastien Gouëzel
-/
import Mathlib.Analysis.NormedSpace.IndicatorFunction
import Mathlib.MeasureTheory.Function.EssSup
import Mathlib.MeasureTheory.Function.AEEqFun
import... | Mathlib/MeasureTheory/Function/LpSeminorm/Basic.lean | 117 | 120 | theorem lintegral_rpow_nnnorm_eq_rpow_snorm' {f : α → F} (hq0_lt : 0 < q) :
(∫⁻ a, (‖f a‖₊ : ℝ≥0∞) ^ q ∂μ) = snorm' f q μ ^ q := by |
rw [snorm', ← ENNReal.rpow_mul, one_div, inv_mul_cancel, ENNReal.rpow_one]
exact (ne_of_lt hq0_lt).symm
|
/-
Copyright (c) 2020 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel, Johan Commelin
-/
import Mathlib.Analysis.Analytic.Basic
import Mathlib.Combinatorics.Enumerative.Composition
#align_import analysis.analytic.composition from "l... | Mathlib/Analysis/Analytic/Composition.lean | 1,040 | 1,078 | theorem sizeUpTo_sizeUpTo_add (a : Composition n) (b : Composition a.length) {i j : ℕ}
(hi : i < b.length) (hj : j < blocksFun b ⟨i, hi⟩) :
sizeUpTo a (sizeUpTo b i + j) =
sizeUpTo (a.gather b) i +
sizeUpTo (sigmaCompositionAux a b ⟨i, (length_gather a b).symm ▸ hi⟩) j := by |
-- Porting note: `induction'` left a spurious `hj` in the context
induction j with
| zero =>
show
sum (take (b.blocks.take i).sum a.blocks) =
sum (take i (map sum (splitWrtComposition a.blocks b)))
induction' i with i IH
· rfl
· have A : i < b.length := Nat.lt_of_succ_lt hi
ha... |
/-
Copyright (c) 2017 Scott Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Patrick Massot, Scott Morrison, Mario Carneiro, Andrew Yang
-/
import Mathlib.Topology.Category.TopCat.Limits.Products
#align_import topology.category.Top.limits.pullbacks from "leanp... | Mathlib/Topology/Category/TopCat/Limits/Pullbacks.lean | 424 | 441 | theorem pullback_fst_image_snd_preimage (f : X ⟶ Z) (g : Y ⟶ Z) (U : Set Y) :
(pullback.fst : pullback f g ⟶ _) '' ((pullback.snd : pullback f g ⟶ _) ⁻¹' U) =
f ⁻¹' (g '' U) := by |
ext x
constructor
· rintro ⟨(y : (forget TopCat).obj _), hy, rfl⟩
exact
⟨(pullback.snd : pullback f g ⟶ _) y, hy,
(ConcreteCategory.congr_hom pullback.condition y).symm⟩
· rintro ⟨y, hy, eq⟩
-- next 5 lines were
-- `exact ⟨(TopCat.pullbackIsoProdSubtype f g).inv ⟨⟨_, _⟩, eq.symm⟩, by ... |
/-
Copyright (c) 2020 Scott Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Scott Morrison
-/
import Mathlib.CategoryTheory.Monoidal.Braided.Basic
import Mathlib.CategoryTheory.Monoidal.Discrete
import Mathlib.CategoryTheory.Monoidal.CoherenceLemmas
import Mat... | Mathlib/CategoryTheory/Monoidal/Mon_.lean | 569 | 572 | theorem one_braiding {X Y : Mon_ C} : (X ⊗ Y).one ≫ (β_ X.X Y.X).hom = (Y ⊗ X).one := by |
simp only [monMonoidalStruct_tensorObj_X, tensor_one, Category.assoc,
BraidedCategory.braiding_naturality, braiding_tensorUnit_right, Iso.cancel_iso_inv_left]
coherence
|
/-
Copyright (c) 2021 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Analysis.BoxIntegral.Box.Basic
import Mathlib.Analysis.SpecificLimits.Basic
#align_import analysis.box_integral.box.subbox_induction from "leanprove... | Mathlib/Analysis/BoxIntegral/Box/SubboxInduction.lean | 53 | 62 | theorem mem_splitCenterBox {s : Set ι} {y : ι → ℝ} :
y ∈ I.splitCenterBox s ↔ y ∈ I ∧ ∀ i, (I.lower i + I.upper i) / 2 < y i ↔ i ∈ s := by |
simp only [splitCenterBox, mem_def, ← forall_and]
refine forall_congr' fun i ↦ ?_
dsimp only [Set.piecewise]
split_ifs with hs <;> simp only [hs, iff_true_iff, iff_false_iff, not_lt]
exacts [⟨fun H ↦ ⟨⟨(left_lt_add_div_two.2 (I.lower_lt_upper i)).trans H.1, H.2⟩, H.1⟩,
fun H ↦ ⟨H.2, H.1.2⟩⟩,
⟨fun H... |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Sébastien Gouëzel,
Rémy Degenne, David Loeffler
-/
import Mathlib.Analysis.SpecialFunctions.Pow.Complex
import Qq
#align_... | Mathlib/Analysis/SpecialFunctions/Pow/Real.lean | 158 | 158 | theorem one_rpow (x : ℝ) : (1 : ℝ) ^ x = 1 := by | simp [rpow_def]
|
/-
Copyright (c) 2020 Thomas Browning, Patrick Lutz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Thomas Browning, Patrick Lutz
-/
import Mathlib.Algebra.Algebra.Subalgebra.Directed
import Mathlib.FieldTheory.IntermediateField
import Mathlib.FieldTheory.Separable
imp... | Mathlib/FieldTheory/Adjoin.lean | 795 | 807 | theorem adjoin_toSubalgebra_of_isAlgebraic (L : IntermediateField F K)
(halg : Algebra.IsAlgebraic F E ∨ Algebra.IsAlgebraic F L) :
(adjoin E (L : Set K)).toSubalgebra = Algebra.adjoin E (L : Set K) := by |
let i := IsScalarTower.toAlgHom F E K
let E' := i.fieldRange
let i' : E ≃ₐ[F] E' := AlgEquiv.ofInjectiveField i
have hi : algebraMap E K = (algebraMap E' K) ∘ i' := by ext x; rfl
apply_fun _ using Subalgebra.restrictScalars_injective F
erw [← restrictScalars_toSubalgebra, restrictScalars_adjoin_of_algEquiv... |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro, Yury Kudryashov
-/
import Mathlib.MeasureTheory.OuterMeasure.Basic
/-!
# The “almost everywhere” filter of co-null sets.
If `μ` is an outer measure or a measure on `α... | Mathlib/MeasureTheory/OuterMeasure/AE.lean | 216 | 218 | theorem union_ae_eq_right_of_ae_eq_empty (h : s =ᵐ[μ] (∅ : Set α)) : (s ∪ t : Set α) =ᵐ[μ] t := by |
convert ae_eq_set_union h (ae_eq_refl t)
rw [empty_union]
|
/-
Copyright (c) 2019 Kenny Lau. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kenny Lau
-/
import Mathlib.Algebra.Algebra.Operations
import Mathlib.Algebra.Algebra.Subalgebra.Prod
import Mathlib.Algebra.Algebra.Subalgebra.Tower
import Mathlib.LinearAlgebra.Basis
impo... | Mathlib/RingTheory/Adjoin/Basic.lean | 247 | 258 | theorem mem_adjoin_of_map_mul {s} {x : A} {f : A →ₗ[R] B} (hf : ∀ a₁ a₂, f (a₁ * a₂) = f a₁ * f a₂)
(h : x ∈ adjoin R s) : f x ∈ adjoin R (f '' (s ∪ {1})) := by |
refine
@adjoin_induction R A _ _ _ _ (fun a => f a ∈ adjoin R (f '' (s ∪ {1}))) x h
(fun a ha => subset_adjoin ⟨a, ⟨Set.subset_union_left ha, rfl⟩⟩) (fun r => ?_)
(fun y z hy hz => by simpa [hy, hz] using Subalgebra.add_mem _ hy hz) fun y z hy hz => by
simpa [hy, hz, hf y z] using Subalgebra.mu... |
/-
Copyright (c) 2020 Kexing Ying. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kexing Ying
-/
import Mathlib.Algebra.Group.Conj
import Mathlib.Algebra.Group.Pi.Lemmas
import Mathlib.Algebra.Group.Subsemigroup.Operations
import Mathlib.Algebra.Group.Submonoid.Operati... | Mathlib/Algebra/Group/Subgroup/Basic.lean | 3,038 | 3,039 | theorem map_eq_map_iff {f : G →* N} {H K : Subgroup G} :
H.map f = K.map f ↔ H ⊔ f.ker = K ⊔ f.ker := by | simp only [le_antisymm_iff, map_le_map_iff']
|
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Sébastien Gouëzel,
Rémy Degenne, David Loeffler
-/
import Mathlib.Analysis.SpecialFunctions.Pow.Real
#align_import analys... | Mathlib/Analysis/SpecialFunctions/Pow/NNReal.lean | 495 | 502 | theorem rpow_eq_top_iff {x : ℝ≥0∞} {y : ℝ} : x ^ y = ⊤ ↔ x = 0 ∧ y < 0 ∨ x = ⊤ ∧ 0 < y := by |
cases' x with x
· rcases lt_trichotomy y 0 with (H | H | H) <;>
simp [H, top_rpow_of_neg, top_rpow_of_pos, le_of_lt]
· by_cases h : x = 0
· rcases lt_trichotomy y 0 with (H | H | H) <;>
simp [h, H, zero_rpow_of_neg, zero_rpow_of_pos, le_of_lt]
· simp [coe_rpow_of_ne_zero h, h]
|
/-
Copyright (c) 2020 Joseph Myers. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Myers
-/
import Mathlib.Data.Set.Pointwise.Interval
import Mathlib.LinearAlgebra.AffineSpace.Basic
import Mathlib.LinearAlgebra.BilinearMap
import Mathlib.LinearAlgebra.Pi
import ... | Mathlib/LinearAlgebra/AffineSpace/AffineMap.lean | 550 | 551 | theorem lineMap_same_apply (p : P1) (c : k) : lineMap p p c = p := by |
simp [lineMap_apply]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Johan Commelin, Mario Carneiro
-/
import Mathlib.Algebra.Algebra.Tower
import Mathlib.Algebra.GroupWithZero.Divisibility
import Mathlib.Algebra.Regular.Pow
import Mathl... | Mathlib/Algebra/MvPolynomial/Basic.lean | 1,463 | 1,466 | theorem C_dvd_iff_map_hom_eq_zero (q : R →+* S₁) (r : R) (hr : ∀ r' : R, q r' = 0 ↔ r ∣ r')
(φ : MvPolynomial σ R) : C r ∣ φ ↔ map q φ = 0 := by |
rw [C_dvd_iff_dvd_coeff, MvPolynomial.ext_iff]
simp only [coeff_map, coeff_zero, hr]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl
-/
import Mathlib.Algebra.Group.Indicator
import Mathlib.Data.Finset.Piecewise
import Mathlib.Data.Finset.Preimage
#align_import algebra.big_operators.basic from "leanp... | Mathlib/Algebra/BigOperators/Group/Finset.lean | 1,914 | 1,921 | theorem prod_update_of_not_mem [DecidableEq α] {s : Finset α} {i : α} (h : i ∉ s) (f : α → β)
(b : β) : ∏ x ∈ s, Function.update f i b x = ∏ x ∈ s, f x := by |
apply prod_congr rfl
intros j hj
have : j ≠ i := by
rintro rfl
exact h hj
simp [this]
|
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro, Floris van Doorn, Violeta Hernández Palacios
-/
import Mathlib.SetTheory.Cardinal.Ordinal
import Mathlib.SetTheory.Ordinal.FixedPoint
#align_import set_theory.cardinal... | Mathlib/SetTheory/Cardinal/Cofinality.lean | 891 | 919 | theorem mk_bounded_subset {α : Type*} (h : ∀ x < #α, (2^x) < #α) {r : α → α → Prop}
[IsWellOrder α r] (hr : (#α).ord = type r) : #{ s : Set α // Bounded r s } = #α := by |
rcases eq_or_ne #α 0 with (ha | ha)
· rw [ha]
haveI := mk_eq_zero_iff.1 ha
rw [mk_eq_zero_iff]
constructor
rintro ⟨s, hs⟩
exact (not_unbounded_iff s).2 hs (unbounded_of_isEmpty s)
have h' : IsStrongLimit #α := ⟨ha, h⟩
have ha := h'.isLimit.aleph0_le
apply le_antisymm
· have : { s : Set ... |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Logic.Equiv.List
import Mathlib.Logic.Function.Iterate
#align_import computability.primrec from "leanprover-community/mathlib"@"2738d2ca56cbc63be80c3b... | Mathlib/Computability/Primrec.lean | 1,355 | 1,357 | theorem fin_val_iff {n} {f : α → Fin n} : (Primrec fun a => (f a).1) ↔ Primrec f := by |
letI : Primcodable { a // id a < n } := Primcodable.subtype (nat_lt.comp .id (const _))
exact (Iff.trans (by rfl) subtype_val_iff).trans (of_equiv_iff _)
|
/-
Copyright (c) 2021 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rémy Degenne
-/
import Mathlib.Analysis.InnerProductSpace.Projection
import Mathlib.MeasureTheory.Function.ConditionalExpectation.Unique
import Mathlib.MeasureTheory.Function.L2Space
#a... | Mathlib/MeasureTheory/Function/ConditionalExpectation/CondexpL2.lean | 337 | 351 | theorem set_lintegral_nnnorm_condexpL2_indicator_le (hm : m ≤ m0) (hs : MeasurableSet s)
(hμs : μ s ≠ ∞) (x : E') {t : Set α} (ht : MeasurableSet[m] t) (hμt : μ t ≠ ∞) :
∫⁻ a in t, ‖(condexpL2 E' 𝕜 hm (indicatorConstLp 2 hs hμs x) : α → E') a‖₊ ∂μ ≤
μ (s ∩ t) * ‖x‖₊ :=
calc
∫⁻ a in t, ‖(condexpL2 E' ... |
simp_rw [nnnorm_smul, ENNReal.coe_mul]
rw [lintegral_mul_const, lpMeas_coe]
exact (Lp.stronglyMeasurable _).ennnorm
_ ≤ μ (s ∩ t) * ‖x‖₊ :=
mul_le_mul_right' (lintegral_nnnorm_condexpL2_indicator_le_real hs hμs ht hμt) _
|
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Fin.Fin2
import Mathlib.Data.PFun
import Mathlib.Data.Vector3
import Mathlib.NumberTheory.PellMatiyasevic
#align_import number_theory.dioph from ... | Mathlib/NumberTheory/Dioph.lean | 225 | 232 | theorem induction {C : Poly α → Prop} (H1 : ∀ i, C (proj i)) (H2 : ∀ n, C (const n))
(H3 : ∀ f g, C f → C g → C (f - g)) (H4 : ∀ f g, C f → C g → C (f * g)) (f : Poly α) : C f := by |
cases' f with f pf
induction' pf with i n f g pf pg ihf ihg f g pf pg ihf ihg
· apply H1
· apply H2
· apply H3 _ _ ihf ihg
· apply H4 _ _ ihf ihg
|
/-
Copyright (c) 2022 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen, Alex J. Best
-/
import Mathlib.Algebra.CharP.Quotient
import Mathlib.Algebra.GroupWithZero.NonZeroDivisors
import Mathlib.Data.Finsupp.Fintype
import Mathlib.Data.Int.Absolut... | Mathlib/RingTheory/Ideal/Norm.lean | 557 | 582 | theorem spanNorm_localization (I : Ideal S) [Module.Finite R S] [Module.Free R S] (M : Submonoid R)
{Rₘ : Type*} (Sₘ : Type*) [CommRing Rₘ] [Algebra R Rₘ] [CommRing Sₘ] [Algebra S Sₘ]
[Algebra Rₘ Sₘ] [Algebra R Sₘ] [IsScalarTower R Rₘ Sₘ] [IsScalarTower R S Sₘ]
[IsLocalization M Rₘ] [IsLocalization (Algebra... |
cases subsingleton_or_nontrivial R
· haveI := IsLocalization.unique R Rₘ M
simp [eq_iff_true_of_subsingleton]
let b := Module.Free.chooseBasis R S
rw [map_spanNorm]
refine span_eq_span (Set.image_subset_iff.mpr ?_) (Set.image_subset_iff.mpr ?_)
· rintro a' ha'
simp only [Set.mem_preimage, submodule... |
/-
Copyright (c) 2018 . All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Thomas Browning
-/
import Mathlib.Data.ZMod.Basic
import Mathlib.GroupTheory.Index
import Mathlib.GroupTheory.GroupAction.ConjAct
import Mathlib.GroupTheory.GroupAction.Quotient
import... | Mathlib/GroupTheory/PGroup.lean | 377 | 392 | theorem cyclic_center_quotient_of_card_eq_prime_sq (hG : card G = p ^ 2) :
IsCyclic (G ⧸ center G) := by |
classical
rcases card_center_eq_prime_pow hG zero_lt_two with ⟨k, hk0, hk⟩
rw [← Nat.card_eq_fintype_card] at hG hk
rw [card_eq_card_quotient_mul_card_subgroup (center G), mul_comm, hk] at hG
rw [Nat.card_eq_fintype_card] at hG
have hk2 := (Nat.pow_dvd_pow_iff_le_right (Fact.out (p := p.Prime)).o... |
/-
Copyright (c) 2019 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Sébastien Gouëzel, Yury Kudryashov
-/
import Mathlib.Analysis.Calculus.TangentCone
import Mathlib.Analysis.NormedSpace.OperatorNorm.Asymptotics
#align_import analysis.ca... | Mathlib/Analysis/Calculus/FDeriv/Basic.lean | 1,254 | 1,257 | theorem HasStrictFDerivAt.of_nmem_tsupport (h : x ∉ tsupport f) :
HasStrictFDerivAt f (0 : E →L[𝕜] F) x := by |
rw [not_mem_tsupport_iff_eventuallyEq] at h
exact (hasStrictFDerivAt_const (0 : F) x).congr_of_eventuallyEq h.symm
|
/-
Copyright (c) 2015, 2017 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Robert Y. Lewis, Johannes Hölzl, Mario Carneiro, Sébastien Gouëzel
-/
import Mathlib.Topology.EMetricSpace.Basic
import Mathlib.Topology.Bornology.Constructions
imp... | Mathlib/Topology/MetricSpace/PseudoMetric.lean | 1,373 | 1,376 | theorem Real.dist_le_of_mem_Icc {x y x' y' : ℝ} (hx : x ∈ Icc x' y') (hy : y ∈ Icc x' y') :
dist x y ≤ y' - x' := by |
simpa only [Real.dist_eq, abs_of_nonpos (sub_nonpos.2 <| hx.1.trans hx.2), neg_sub] using
Real.dist_le_of_mem_uIcc (Icc_subset_uIcc hx) (Icc_subset_uIcc hy)
|
/-
Copyright (c) 2018 Kenny Lau. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kenny Lau
-/
import Mathlib.Algebra.Algebra.Operations
import Mathlib.Data.Fintype.Lattice
import Mathlib.RingTheory.Coprime.Lemmas
#align_import ring_theory.ideal.operations from "leanpro... | Mathlib/RingTheory/Ideal/Operations.lean | 548 | 550 | theorem span_singleton_mul_le_span_singleton_mul {x y : R} {I J : Ideal R} :
span {x} * I ≤ span {y} * J ↔ ∀ zI ∈ I, ∃ zJ ∈ J, x * zI = y * zJ := by |
simp only [span_singleton_mul_le_iff, mem_span_singleton_mul, eq_comm]
|
/-
Copyright (c) 2020 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen, Filippo A. E. Nuccio
-/
import Mathlib.RingTheory.Localization.Integer
import Mathlib.RingTheory.Localization.Submodule
#align_import ring_theory.fractional_ideal from "lean... | Mathlib/RingTheory/FractionalIdeal/Basic.lean | 235 | 240 | theorem isFractional_of_le {I : Submodule R P} {J : FractionalIdeal S P} (hIJ : I ≤ J) :
IsFractional S I := by |
obtain ⟨a, a_mem, ha⟩ := J.isFractional
use a, a_mem
intro b b_mem
exact ha b (hIJ b_mem)
|
/-
Copyright (c) 2020 Aaron Anderson. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Aaron Anderson
-/
import Mathlib.Algebra.BigOperators.Ring
import Mathlib.Algebra.Module.BigOperators
import Mathlib.NumberTheory.Divisors
import Mathlib.Data.Nat.Squarefree
import Mat... | Mathlib/NumberTheory/ArithmeticFunction.lean | 202 | 205 | theorem coe_coe [AddGroupWithOne R] {f : ArithmeticFunction ℕ} :
((f : ArithmeticFunction ℤ) : ArithmeticFunction R) = (f : ArithmeticFunction R) := by |
ext
simp
|
/-
Copyright (c) 2022 Jujian Zhang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Markus Himmel, Scott Morrison, Jakob von Raumer, Joël Riou
-/
import Mathlib.CategoryTheory.Preadditive.ProjectiveResolution
import Mathlib.Algebra.Homology.HomotopyCategory
import Mathl... | Mathlib/CategoryTheory/Abelian/ProjectiveResolution.lean | 99 | 102 | theorem lift_commutes {Y Z : C} (f : Y ⟶ Z) (P : ProjectiveResolution Y)
(Q : ProjectiveResolution Z) : lift f P Q ≫ Q.π = P.π ≫ (ChainComplex.single₀ C).map f := by |
ext
simp [lift, liftFZero, liftFOne]
|
/-
Copyright (c) 2020 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel, Floris van Doorn
-/
import Mathlib.Geometry.Manifold.ChartedSpace
#align_import geometry.manifold.local_invariant_properties from "leanprover-community/mathlib"@... | Mathlib/Geometry/Manifold/LocalInvariantProperties.lean | 550 | 557 | theorem liftPropAt_iff_comp_subtype_val (hG : LocalInvariantProp G G' P) {U : Opens M}
(f : M → M') (x : U) :
LiftPropAt P f x ↔ LiftPropAt P (f ∘ Subtype.val) x := by |
simp only [LiftPropAt, liftPropWithinAt_iff']
congrm ?_ ∧ ?_
· simp_rw [continuousWithinAt_univ, U.openEmbedding'.continuousAt_iff]
· apply hG.congr_iff
exact (U.chartAt_subtype_val_symm_eventuallyEq).fun_comp (chartAt H' (f x) ∘ f)
|
/-
Copyright (c) 2019 Amelia Livingston. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Amelia Livingston
-/
import Mathlib.Algebra.Group.Submonoid.Membership
import Mathlib.Algebra.Group.Units
import Mathlib.Algebra.Regular.Basic
import Mathlib.GroupTheory.Congruence.... | Mathlib/GroupTheory/MonoidLocalization.lean | 1,935 | 1,936 | theorem LocalizationMap.sec_zero_fst {f : LocalizationMap S N} : f.toMap (f.sec 0).fst = 0 := by |
rw [LocalizationMap.sec_spec', mul_zero]
|
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker, Johan Commelin
-/
import Mathlib.Algebra.Polynomial.AlgebraMap
import Mathlib.Algebra.Polynomial.BigOperators
import Mathlib... | Mathlib/Algebra/Polynomial/RingDivision.lean | 401 | 407 | theorem nmem_nonZeroDivisors_iff {P : R[X]} : P ∉ R[X]⁰ ↔ ∃ a : R, a ≠ 0 ∧ a • P = 0 := by |
refine ⟨fun hP ↦ ?_, fun ⟨a, ha, h⟩ h1 ↦ ha <| C_eq_zero.1 <| (h1 _) <| smul_eq_C_mul a ▸ h⟩
by_contra! h
obtain ⟨Q, hQ⟩ := _root_.nmem_nonZeroDivisors_iff.1 hP
refine hQ.2 (eq_zero_of_mul_eq_zero_of_smul P (fun a ha ↦ ?_) Q (mul_comm P _ ▸ hQ.1))
contrapose! ha
exact h a ha
|
/-
Copyright (c) 2023 Michael Stoll. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Michael Geißer, Michael Stoll
-/
import Mathlib.Tactic.Qify
import Mathlib.Data.ZMod.Basic
import Mathlib.NumberTheory.DiophantineApproximation
import Mathlib.NumberTheory.Zsqrtd.Basic
... | Mathlib/NumberTheory/Pell.lean | 234 | 237 | theorem d_pos_of_one_lt_x {a : Solution₁ d} (ha : 1 < a.x) : 0 < d := by |
refine pos_of_mul_pos_left ?_ (sq_nonneg a.y)
rw [a.prop_y, sub_pos]
exact one_lt_pow ha two_ne_zero
|
/-
Copyright (c) 2020 Zhouhang Zhou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Zhouhang Zhou, Yury Kudryashov
-/
import Mathlib.Order.Filter.AtTopBot
#align_import order.filter.indicator_function from "leanprover-community/mathlib"@"8631e2d5ea77f6c13054d9151d82b8... | Mathlib/Order/Filter/IndicatorFunction.lean | 63 | 66 | theorem Monotone.mulIndicator_eventuallyEq_iUnion {ι} [Preorder ι] [One β] (s : ι → Set α)
(hs : Monotone s) (f : α → β) (a : α) :
(fun i => mulIndicator (s i) f a) =ᶠ[atTop] fun _ ↦ mulIndicator (⋃ i, s i) f a := by |
classical exact hs.piecewise_eventually_eq_iUnion f 1 a
|
/-
Copyright (c) 2019 Johan Commelin. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin, Kenny Lau
-/
import Mathlib.RingTheory.MvPowerSeries.Basic
import Mathlib.RingTheory.Ideal.LocalRing
#align_import ring_theory.power_series.basic from "leanprover-co... | Mathlib/RingTheory/MvPowerSeries/Inverse.lean | 201 | 204 | theorem constantCoeff_inv (φ : MvPowerSeries σ k) :
constantCoeff σ k φ⁻¹ = (constantCoeff σ k φ)⁻¹ := by |
classical
rw [← coeff_zero_eq_constantCoeff_apply, coeff_inv, if_pos rfl]
|
/-
Copyright (c) 2018 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Mario Carneiro, Simon Hudon
-/
import Mathlib.Data.Fin.Fin2
import Mathlib.Logic.Function.Basic
import Mathlib.Tactic.Common
#align_import data.typevec from "leanprover-... | Mathlib/Data/TypeVec.lean | 713 | 716 | theorem lastFun_of_subtype {α} (p : α ⟹ «repeat» (n + 1) Prop) :
lastFun (ofSubtype p) = _root_.id := by |
ext i : 2
induction i; simp [dropFun, *]; rfl
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Data.Fintype.BigOperators
import Mathlib.Data.Finsupp.Defs
import Mathlib.Data.Nat.Cast.Order
import Mathlib.Data.Set... | Mathlib/SetTheory/Cardinal/Basic.lean | 2,180 | 2,190 | theorem mk_preimage_of_subset_range_lift {α : Type u} {β : Type v} (f : α → β) (s : Set β)
(h : s ⊆ range f) : lift.{u} #s ≤ lift.{v} #(f ⁻¹' s) := by |
rw [lift_mk_le.{0}]
refine ⟨⟨?_, ?_⟩⟩
· rintro ⟨y, hy⟩
rcases Classical.subtype_of_exists (h hy) with ⟨x, rfl⟩
exact ⟨x, hy⟩
rintro ⟨y, hy⟩ ⟨y', hy'⟩; dsimp
rcases Classical.subtype_of_exists (h hy) with ⟨x, rfl⟩
rcases Classical.subtype_of_exists (h hy') with ⟨x', rfl⟩
simp; intro hxx'; rw [hxx'... |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Algebra.Ring.Divisibility.Basic
import Mathlib.Init.Data.Ordering.Lemmas
import Mathlib.SetTheory.Ordinal.Principal
import Mathlib.Tactic.NormNum
#ali... | Mathlib/SetTheory/Ordinal/Notation.lean | 784 | 791 | theorem nf_repr_split {o o' m} [NF o] (h : split o = (o', m)) : NF o' ∧ repr o = repr o' + m := by |
cases' e : split' o with a n
cases' nf_repr_split' e with s₁ s₂
rw [split_eq_scale_split' e] at h
injection h; substs o' n
simp only [repr_scale, repr, opow_zero, Nat.succPNat_coe, Nat.cast_one, mul_one, add_zero,
opow_one, s₂.symm, and_true]
infer_instance
|
/-
Copyright (c) 2019 Gabriel Ebner. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Gabriel Ebner, Sébastien Gouëzel
-/
import Mathlib.Analysis.Calculus.FDeriv.Basic
import Mathlib.Analysis.NormedSpace.OperatorNorm.NormedSpace
#align_import analysis.calculus.deriv.bas... | Mathlib/Analysis/Calculus/Deriv/Basic.lean | 561 | 569 | theorem derivWithin_Ioi_eq_Ici {E : Type*} [NormedAddCommGroup E] [NormedSpace ℝ E] (f : ℝ → E)
(x : ℝ) : derivWithin f (Ioi x) x = derivWithin f (Ici x) x := by |
by_cases H : DifferentiableWithinAt ℝ f (Ioi x) x
· have A := H.hasDerivWithinAt.Ici_of_Ioi
have B := (differentiableWithinAt_Ioi_iff_Ici.1 H).hasDerivWithinAt
simpa using (uniqueDiffOn_Ici x).eq left_mem_Ici A B
· rw [derivWithin_zero_of_not_differentiableWithinAt H,
derivWithin_zero_of_not_differ... |
/-
Copyright (c) 2019 Reid Barton. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.Topology.Constructions
#align_import topology.continuous_on from "leanprover-community/mathlib"@"d4f691b9e5f94cfc64639973f3544c95f8d5d494"
/-!
# Neig... | Mathlib/Topology/ContinuousOn.lean | 75 | 76 | theorem nhdsWithin_univ (a : α) : 𝓝[Set.univ] a = 𝓝 a := by |
rw [nhdsWithin, principal_univ, inf_top_eq]
|
/-
Copyright (c) 2024 Josha Dekker. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Josha Dekker
-/
import Mathlib.Order.Filter.Basic
import Mathlib.Order.Filter.CountableInter
import Mathlib.SetTheory.Cardinal.Ordinal
import Mathlib.SetTheory.Cardinal.Cofinality
/-!
#... | Mathlib/Order/Filter/CardinalInter.lean | 102 | 105 | theorem eventually_cardinal_forall {p : α → ι → Prop} (hic : #ι < c) :
(∀ᶠ x in l, ∀ i, p x i) ↔ ∀ i, ∀ᶠ x in l, p x i := by |
simp only [Filter.Eventually, setOf_forall]
exact cardinal_iInter_mem hic
|
/-
Copyright (c) 2019 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.Logic.Equiv.PartialEquiv
import Mathlib.Topology.Sets.Opens
#align_import topology.local_homeomorph from "leanprover-community/mathlib"@"431589b... | Mathlib/Topology/PartialHomeomorph.lean | 1,420 | 1,422 | theorem partialHomeomorphSubtypeCoe_target : (s.partialHomeomorphSubtypeCoe hs).target = s := by |
simp only [partialHomeomorphSubtypeCoe, Subtype.range_coe_subtype, mfld_simps]
rfl
|
/-
Copyright (c) 2022 Kexing Ying. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kexing Ying
-/
import Mathlib.Order.Interval.Set.Monotone
import Mathlib.Probability.Process.HittingTime
import Mathlib.Probability.Martingale.Basic
import Mathlib.Tactic.AdaptationNote
... | Mathlib/Probability/Martingale/Upcrossing.lean | 397 | 406 | theorem Adapted.upcrossingStrat_adapted (hf : Adapted ℱ f) :
Adapted ℱ (upcrossingStrat a b f N) := by |
intro n
change StronglyMeasurable[ℱ n] fun ω =>
∑ k ∈ Finset.range N, ({n | lowerCrossingTime a b f N k ω ≤ n} ∩
{n | n < upperCrossingTime a b f N (k + 1) ω}).indicator 1 n
refine Finset.stronglyMeasurable_sum _ fun i _ =>
stronglyMeasurable_const.indicator ((hf.isStoppingTime_lowerCrossingTime n)... |
/-
Copyright (c) 2018 Andreas Swerdlow. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andreas Swerdlow
-/
import Mathlib.Algebra.Module.LinearMap.Basic
import Mathlib.LinearAlgebra.Basic
import Mathlib.LinearAlgebra.Basis
import Mathlib.LinearAlgebra.BilinearMap
#ali... | Mathlib/LinearAlgebra/SesquilinearForm.lean | 721 | 723 | theorem separatingRight_iff_linear_flip_nontrivial {B : M₁ →ₛₗ[I₁] M₂ →ₛₗ[I₂] M} :
B.SeparatingRight ↔ ∀ y : M₂, B.flip y = 0 → y = 0 := by |
rw [← flip_separatingLeft, separatingLeft_iff_linear_nontrivial]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mitchell Lee
-/
import Mathlib.Topology.Algebra.InfiniteSum.Defs
import Mathlib.Data.Fintype.BigOperators
import Mathlib.Topology.Algebra.Monoid
/-!
# Lemmas on infini... | Mathlib/Topology/Algebra/InfiniteSum/Basic.lean | 469 | 471 | theorem Finset.tprod_subtype (s : Finset β) (f : β → α) :
∏' x : { x // x ∈ s }, f x = ∏ x ∈ s, f x := by |
rw [← prod_attach]; exact tprod_fintype _
|
/-
Copyright (c) 2021 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.SetTheory.Cardinal.Ordinal
#align_import set_theory.cardinal.continuum from "leanprover-community/mathlib"@"e08a42b2dd544cf11eba72e5fc7bf199d4349925... | Mathlib/SetTheory/Cardinal/Continuum.lean | 52 | 54 | theorem lift_le_continuum {c : Cardinal.{u}} : lift.{v} c ≤ 𝔠 ↔ c ≤ 𝔠 := by |
-- Porting note: added explicit universes
rw [← lift_continuum.{u,v}, lift_le]
|
/-
Copyright (c) 2021 Adam Topaz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Adam Topaz, Joël Riou
-/
import Mathlib.CategoryTheory.Adjunction.Whiskering
import Mathlib.CategoryTheory.Sites.PreservesSheafification
#align_import category_theory.sites.adjunction fro... | Mathlib/CategoryTheory/Sites/Adjunction.lean | 148 | 160 | theorem adjunctionToTypes_counit_app_val {G : Type max v u ⥤ D} (adj : G ⊣ forget D)
(X : Sheaf J D) :
((adjunctionToTypes J adj).counit.app X).val =
sheafifyLift J ((Functor.associator _ _ _).hom ≫ (adj.whiskerRight _).counit.app _) X.2 := by |
apply sheafifyLift_unique
dsimp only [adjunctionToTypes, Adjunction.comp, NatTrans.comp_app,
instCategorySheaf_comp_val, instCategorySheaf_id_val]
rw [adjunction_counit_app_val]
erw [Category.id_comp, sheafifyMap_sheafifyLift, toSheafify_sheafifyLift]
ext
dsimp [sheafEquivSheafOfTypes, Equivalence.symm... |
/-
Copyright (c) 2016 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
-/
import Mathlib.Algebra.Order.Ring.Basic
import Mathlib.Algebra.Order.Ring.Int
import Mathlib.Algebra.Ring.Divisibility.Basic
import M... | Mathlib/Algebra/Order/Ring/Abs.lean | 192 | 193 | theorem abs_dvd (a b : α) : |a| ∣ b ↔ a ∣ b := by |
cases' abs_choice a with h h <;> simp only [h, neg_dvd]
|
/-
Copyright (c) 2022 Bhavik Mehta. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Bhavik Mehta
-/
import Mathlib.Algebra.IsPrimePow
import Mathlib.Data.Nat.Factorization.Basic
#align_import data.nat.factorization.prime_pow from "leanprover-community/mathlib"@"6ca1a09... | Mathlib/Data/Nat/Factorization/PrimePow.lean | 63 | 73 | theorem IsPrimePow.exists_ord_compl_eq_one {n : ℕ} (h : IsPrimePow n) :
∃ p : ℕ, p.Prime ∧ ord_compl[p] n = 1 := by |
rcases eq_or_ne n 0 with (rfl | hn0); · cases not_isPrimePow_zero h
rcases isPrimePow_iff_factorization_eq_single.mp h with ⟨p, k, hk0, h1⟩
rcases em' p.Prime with (pp | pp)
· refine absurd ?_ hk0.ne'
simp [← Nat.factorization_eq_zero_of_non_prime n pp, h1]
refine ⟨p, pp, ?_⟩
refine Nat.eq_of_factoriza... |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Data.Fintype.BigOperators
import Mathlib.Data.Finsupp.Defs
import Mathlib.Data.Nat.Cast.Order
import Mathlib.Data.Set... | Mathlib/SetTheory/Cardinal/Basic.lean | 1,306 | 1,307 | theorem lift_lt_aleph0 {c : Cardinal.{u}} : lift.{v} c < ℵ₀ ↔ c < ℵ₀ := by |
rw [← lift_aleph0.{u,v}, lift_lt]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Jeremy Avigad
-/
import Mathlib.Algebra.Order.Ring.Defs
import Mathlib.Data.Set.Finite
#align_import order.filter.basic from "leanprover-community/mathlib"@"d4f691b9e5... | Mathlib/Order/Filter/Basic.lean | 3,060 | 3,063 | theorem le_map_of_right_inverse {mab : α → β} {mba : β → α} {f : Filter α} {g : Filter β}
(h₁ : mab ∘ mba =ᶠ[g] id) (h₂ : Tendsto mba g f) : g ≤ map mab f := by |
rw [← @map_id _ g, ← map_congr h₁, ← map_map]
exact map_mono h₂
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Jeremy Avigad
-/
import Mathlib.Order.Filter.Lift
import Mathlib.Topology.Defs.Filter
#align_import topology.basic from "leanprover-community/mathlib"@... | Mathlib/Topology/Basic.lean | 1,045 | 1,047 | theorem clusterPt_principal_iff_frequently :
ClusterPt x (𝓟 s) ↔ ∃ᶠ y in 𝓝 x, y ∈ s := by |
simp only [clusterPt_principal_iff, frequently_iff, Set.Nonempty, exists_prop, mem_inter_iff]
|
/-
Copyright (c) 2023 Frédéric Dupuis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Frédéric Dupuis
-/
import Mathlib.Computability.AkraBazzi.GrowsPolynomially
import Mathlib.Analysis.Calculus.Deriv.Inv
import Mathlib.Analysis.SpecialFunctions.Pow.Deriv
/-!
# Divid... | Mathlib/Computability/AkraBazzi/AkraBazzi.lean | 1,440 | 1,449 | theorem isBigO_asympBound : T =O[atTop] asympBound g a b := by |
calc T =O[atTop] (fun n => (1 - ε n) * asympBound g a b n) := by
exact R.T_isBigO_smoothingFn_mul_asympBound
_ =O[atTop] (fun n => 1 * asympBound g a b n) := by
refine IsBigO.mul (isBigO_const_of_tendsto (y := 1) ?_ one_ne_zero)
(isBigO_refl _ _)
rw ... |
/-
Copyright (c) 2020 Eric Wieser. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Eric Wieser
-/
import Mathlib.Algebra.Module.Defs
import Mathlib.Data.SetLike.Basic
import Mathlib.GroupTheory.GroupAction.Basic
import Mathlib.GroupTheory.GroupAction.Hom
#align_import ... | Mathlib/GroupTheory/GroupAction/SubMulAction.lean | 370 | 373 | theorem stabilizer_of_subMul.submonoid {p : SubMulAction R M} (m : p) :
MulAction.stabilizerSubmonoid R m = MulAction.stabilizerSubmonoid R (m : M) := by |
ext
simp only [MulAction.mem_stabilizerSubmonoid_iff, ← SubMulAction.val_smul, SetLike.coe_eq_coe]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Data.Finsupp.Multiset
import Mathlib.Order.Bounded
import Mathlib.SetTheory.Cardinal.PartENat
import Mathlib.SetTheor... | Mathlib/SetTheory/Cardinal/Ordinal.lean | 741 | 742 | theorem add_eq_max' {a b : Cardinal} (ha : ℵ₀ ≤ b) : a + b = max a b := by |
rw [add_comm, max_comm, add_eq_max ha]
|
/-
Copyright (c) 2022 Joachim Breitner. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joachim Breitner
-/
import Mathlib.GroupTheory.OrderOfElement
import Mathlib.Data.Finset.NoncommProd
import Mathlib.Data.Fintype.BigOperators
import Mathlib.Data.Nat.GCD.BigOperators... | Mathlib/GroupTheory/NoncommPiCoprod.lean | 125 | 137 | theorem noncommPiCoprod_mulSingle (i : ι) (y : N i) :
noncommPiCoprod ϕ hcomm (Pi.mulSingle i y) = ϕ i y := by |
change Finset.univ.noncommProd (fun j => ϕ j (Pi.mulSingle i y j)) (fun _ _ _ _ h => hcomm h _ _)
= ϕ i y
rw [← Finset.insert_erase (Finset.mem_univ i)]
rw [Finset.noncommProd_insert_of_not_mem _ _ _ _ (Finset.not_mem_erase i _)]
rw [Pi.mulSingle_eq_same]
rw [Finset.noncommProd_eq_pow_card]
· rw [one_p... |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Fintype.Option
import Mathlib.Data.Fintype.Prod
import Mathlib.Data.Fintype.Pi
import Mathlib.Data.Vector.Basic
import Mathlib.Data.PFun
import Ma... | Mathlib/Computability/TuringMachine.lean | 869 | 875 | theorem reaches_eval {σ} {f : σ → Option σ} {a b} (ab : Reaches f a b) : eval f a = eval f b := by |
refine Part.ext fun _ ↦ ⟨fun h ↦ ?_, fun h ↦ ?_⟩
· have ⟨ac, c0⟩ := mem_eval.1 h
exact mem_eval.2 ⟨(or_iff_left_of_imp fun cb ↦ (eval_maximal h).1 cb ▸ ReflTransGen.refl).1
(reaches_total ab ac), c0⟩
· have ⟨bc, c0⟩ := mem_eval.1 h
exact mem_eval.2 ⟨ab.trans bc, c0⟩
|
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
-/
import Mathlib.Algebra.Algebra.Pi
import Mathlib.Algebra.Polynomial.Eval
import Mathlib.RingTheory.Adjoin.Basic
#align_im... | Mathlib/Algebra/Polynomial/AlgebraMap.lean | 340 | 341 | theorem coeff_zero_eq_aeval_zero (p : R[X]) : p.coeff 0 = aeval 0 p := by |
simp [coeff_zero_eq_eval_zero]
|
/-
Copyright (c) 2014 Robert Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Robert Lewis, Leonardo de Moura, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Algebra.Field.Basic
import Mathlib.Algebra.GroupWithZero.Units.Equiv
import Mathlib.Algebra.Order.Fiel... | Mathlib/Algebra/Order/Field/Basic.lean | 717 | 718 | theorem le_inv_of_neg (ha : a < 0) (hb : b < 0) : a ≤ b⁻¹ ↔ b ≤ a⁻¹ := by |
rw [← inv_le_inv_of_neg (inv_lt_zero.2 hb) ha, inv_inv]
|
/-
Copyright (c) 2022 Aaron Anderson. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Aaron Anderson, Gabin Kolly
-/
import Mathlib.Init.Align
import Mathlib.Data.Fintype.Order
import Mathlib.Algebra.DirectLimit
import Mathlib.ModelTheory.Quotients
import Mathlib.ModelT... | Mathlib/ModelTheory/DirectLimit.lean | 522 | 525 | theorem Equiv_isup_symm_inclusion (i : ι) :
(Equiv_iSup S).symm.toEmbedding.comp (Substructure.inclusion (le_iSup _ _))
= of L ι _ (fun _ _ h ↦ Substructure.inclusion (S.monotone h)) i := by |
ext x; exact Equiv_isup_symm_inclusion_apply _ x
|
/-
Copyright (c) 2018 . All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Thomas Browning
-/
import Mathlib.Data.ZMod.Basic
import Mathlib.GroupTheory.Index
import Mathlib.GroupTheory.GroupAction.ConjAct
import Mathlib.GroupTheory.GroupAction.Quotient
import... | Mathlib/GroupTheory/PGroup.lean | 144 | 152 | theorem card_eq_or_dvd : Nat.card G = 1 ∨ p ∣ Nat.card G := by |
cases fintypeOrInfinite G
· obtain ⟨n, hn⟩ := iff_card.mp hG
rw [Nat.card_eq_fintype_card, hn]
cases' n with n n
· exact Or.inl rfl
· exact Or.inr ⟨p ^ n, by rw [pow_succ']⟩
· rw [Nat.card_eq_zero_of_infinite]
exact Or.inr ⟨0, rfl⟩
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro
-/
import Mathlib.Topology.Compactness.SigmaCompact
import Mathlib.Topology.Connected.TotallyDisconnected
import Mathlib.Topology.Inseparable
#align_imp... | Mathlib/Topology/Separation.lean | 864 | 866 | theorem continuousAt_of_tendsto_nhds [TopologicalSpace Y] [T1Space Y] {f : X → Y} {x : X} {y : Y}
(h : Tendsto f (𝓝 x) (𝓝 y)) : ContinuousAt f x := by |
rwa [ContinuousAt, eq_of_tendsto_nhds h]
|
/-
Copyright (c) 2024 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.NumberTheory.ZetaValues
import Mathlib.NumberTheory.LSeries.RiemannZeta
/-!
# Special values of Hurwitz and Riemann zeta functions
This file gives t... | Mathlib/NumberTheory/LSeries/HurwitzZetaValues.lean | 113 | 124 | theorem sinZeta_two_mul_nat_add_one' (hk : k ≠ 0) (hx : x ∈ Icc (0 : ℝ) 1) :
sinZeta x (2 * k + 1) = (-1) ^ (k + 1) / (2 * k + 1) / Gammaℂ (2 * k + 1) *
((Polynomial.bernoulli (2 * k + 1)).map (algebraMap ℚ ℂ)).eval (x : ℂ) := by |
rw [sinZeta_two_mul_nat_add_one hk hx]
congr 1
have : (2 * k + 1)! = (2 * k + 1) * Complex.Gamma (2 * k + 1) := by
rw [(by simp : Complex.Gamma (2 * k + 1) = Complex.Gamma (↑(2 * k) + 1)),
Complex.Gamma_nat_eq_factorial, ← Nat.cast_ofNat (R := ℂ), ← Nat.cast_mul,
← Nat.cast_add_one, ← Nat.cast_m... |
/-
Copyright (c) 2017 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Oliver Nash
-/
import Mathlib.Data.Finset.Card
#align_import data.finset.prod from "leanprover-community/mathlib"@"9003f28797c0664a49e4179487267... | Mathlib/Data/Finset/Prod.lean | 426 | 428 | theorem offDiag_insert (has : a ∉ s) : (insert a s).offDiag = s.offDiag ∪ {a} ×ˢ s ∪ s ×ˢ {a} := by |
rw [insert_eq, union_comm, offDiag_union (disjoint_singleton_right.2 has), offDiag_singleton,
union_empty, union_right_comm]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Devon Tuma
-/
import Mathlib.Topology.Instances.ENNReal
import Mathlib.MeasureTheory.Measure.Dirac
#align_import probability.probability_mass_function.basic from "lean... | Mathlib/Probability/ProbabilityMassFunction/Basic.lean | 180 | 183 | theorem toOuterMeasure_apply_singleton (a : α) : p.toOuterMeasure {a} = p a := by |
refine (p.toOuterMeasure_apply {a}).trans ((tsum_eq_single a fun b hb => ?_).trans ?_)
· exact ite_eq_right_iff.2 fun hb' => False.elim <| hb hb'
· exact ite_eq_left_iff.2 fun ha' => False.elim <| ha' rfl
|
/-
Copyright (c) 2019 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Patrick Massot, Casper Putz, Anne Baanen
-/
import Mathlib.Data.Matrix.Block
import Mathlib.Data.Matrix.Notation
import Mathlib.LinearAlgebra.StdBasis
import Mathlib.Ri... | Mathlib/LinearAlgebra/Matrix/ToLin.lean | 721 | 723 | theorem Matrix.toLin_mul_apply [Finite l] [DecidableEq m] (A : Matrix l m R) (B : Matrix m n R)
(x) : Matrix.toLin v₁ v₃ (A * B) x = (Matrix.toLin v₂ v₃ A) (Matrix.toLin v₁ v₂ B x) := by |
rw [Matrix.toLin_mul v₁ v₂, LinearMap.comp_apply]
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro
-/
import Mathlib.Topology.Algebra.Constructions
import Mathlib.Topology.Bases
import Mathlib.Topology.UniformSpace.Basic
#align_import topology.uniform... | Mathlib/Topology/UniformSpace/Cauchy.lean | 262 | 264 | theorem cauchySeq_iff {u : ℕ → α} :
CauchySeq u ↔ ∀ V ∈ 𝓤 α, ∃ N, ∀ k ≥ N, ∀ l ≥ N, (u k, u l) ∈ V := by |
simp only [cauchySeq_iff', Filter.eventually_atTop_prod_self', mem_preimage, Prod.map_apply]
|
/-
Copyright (c) 2021 Jordan Brown, Thomas Browning, Patrick Lutz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jordan Brown, Thomas Browning, Patrick Lutz
-/
import Mathlib.Data.Fin.VecNotation
import Mathlib.GroupTheory.Abelianization
import Mathlib.GroupTheory.Per... | Mathlib/GroupTheory/Solvable.lean | 56 | 59 | theorem derivedSeries_normal (n : ℕ) : (derivedSeries G n).Normal := by |
induction' n with n ih
· exact (⊤ : Subgroup G).normal_of_characteristic
· exact @Subgroup.commutator_normal G _ (derivedSeries G n) (derivedSeries G n) ih ih
|
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro, Floris van Doorn, Violeta Hernández Palacios
-/
import Mathlib.SetTheory.Ordinal.Basic
import Mathlib.Data.Nat.SuccPred
#align_import set_theory.ordinal.arithmetic fro... | Mathlib/SetTheory/Ordinal/Arithmetic.lean | 2,039 | 2,041 | theorem exists_of_lt_mex {ι} {f : ι → Ordinal} {a} (ha : a < mex f) : ∃ i, f i = a := by |
by_contra! ha'
exact ha.not_le (mex_le_of_ne ha')
|
/-
Copyright (c) 2014 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Leonardo de Moura
-/
import Mathlib.Algebra.GroupWithZero.Divisibility
import Mathlib.Algebra.Order.Ring.Nat
import Mathlib.Tactic.NthRewrite
#align_import data.nat.gcd.... | Mathlib/Data/Nat/GCD/Basic.lean | 201 | 202 | theorem coprime_mul_left_add_right (m n k : ℕ) : Coprime m (m * k + n) ↔ Coprime m n := by |
rw [Coprime, Coprime, gcd_mul_left_add_right]
|
/-
Copyright (c) 2020 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen, Wen Yang
-/
import Mathlib.LinearAlgebra.GeneralLinearGroup
import Mathlib.LinearAlgebra.Matrix.Adjugate
import Mathlib.LinearAlgebra.Matrix.Transvection
import Mathlib.RingT... | Mathlib/LinearAlgebra/Matrix/SpecialLinearGroup.lean | 271 | 276 | theorem scalar_eq_self_of_mem_center
{A : SpecialLinearGroup n R} (hA : A ∈ center (SpecialLinearGroup n R)) (i : n) :
scalar n (A i i) = A := by |
obtain ⟨r : R, hr : scalar n r = A⟩ := mem_range_scalar_of_commute_transvectionStruct fun t ↦
Subtype.ext_iff.mp <| Subgroup.mem_center_iff.mp hA ⟨t.toMatrix, by simp⟩
simp [← congr_fun₂ hr i i, ← hr]
|
/-
Copyright (c) 2018 Scott Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Reid Barton, Mario Carneiro, Scott Morrison, Floris van Doorn
-/
import Mathlib.CategoryTheory.Limits.IsLimit
import Mathlib.CategoryTheory.Category.ULift
import Mathlib.CategoryTheory... | Mathlib/CategoryTheory/Limits/HasLimits.lean | 1,133 | 1,137 | theorem colimit.pre_map [HasColimitsOfShape K C] (E : K ⥤ J) :
colimit.pre F E ≫ colim.map α = colim.map (whiskerLeft E α) ≫ colimit.pre G E := by |
ext
rw [← assoc, colimit.ι_pre, colimit.ι_map, ← assoc, colimit.ι_map, assoc, colimit.ι_pre]
rfl
|
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