mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.NumberTheory.ClassNumber.Finite

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁹ : EuclideanDomain R
inst✝⁸ : CommRing S
inst✝⁷ : IsDomain S
inst✝⁶ : Algebra R S
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : ↥(Ideal S)⁰
M : R := ∏ m ∈ finsetApprox bS adm, m
hM : (algebraMap R S) M ≠ 0
b : S
b_mem : b ∈ ↑I
b_ne_zero : b ≠ 0
b_min : ∀ c ∈ ↑I, abv ((Algebra.norm R) c) < abv ((Algebra.norm R) b) → c = 0
J : Ideal S
hJ : Ideal.span {(algebraMap R S) M} * ↑I = Ideal.span {b} * J
⊢ {b} ⊆ ↑↑I

Tactic:
Set.singleton_subset_iff

Goal state after:
R : Type u_1
S : Type u_2
inst✝⁹ : EuclideanDomain R
inst✝⁸ : CommRing S
inst✝⁷ : IsDomain S
inst✝⁶ : Algebra R S
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : ↥(Ideal S)⁰
M : R := ∏ m ∈ finsetApprox bS adm, m
hM : (algebraMap R S) M ≠ 0
b : S
b_mem : b ∈ ↑I
b_ne_zero : b ≠ 0
b_min : ∀ c ∈ ↑I, abv ((Algebra.norm R) c) < abv ((Algebra.norm R) b) → c = 0
J : Ideal S
hJ : Ideal.span {(algebraMap R S) M} * ↑I = Ideal.span {b} * J
⊢ b ∈ ↑↑I
Module: Mathlib.NumberTheory.ClassNumber.Finite

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁹ : EuclideanDomain R
inst✝⁸ : CommRing S
inst✝⁷ : IsDomain S
inst✝⁶ : Algebra R S
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : ↥(Ideal S)⁰
M : R := ∏ m ∈ finsetApprox bS adm, m
hM : (algebraMap R S) M ≠ 0
b : S
b_mem : b ∈ ↑I
b_ne_zero : b ≠ 0
b_min : ∀ c ∈ ↑I, abv ((Algebra.norm R) c) < abv ((Algebra.norm R) b) → c = 0
r' : S
hr' : (algebraMap R S) M ∣ r'
a : S
ha : a ∈ ↑I
q : S
r : R
r_mem : r ∈ finsetApprox bS adm
lt : abv ((Algebra.norm R) ((algebraMap R S) r * a - q * b)) < abv ((Algebra.norm R) b)
⊢ (algebraMap R S) r * a ∣ r' * a

Tactic:
refine mul_dvd_mul_right (dvd_trans (map_dvd _ ?_) hr') _

Goal state after:
R : Type u_1
S : Type u_2
inst✝⁹ : EuclideanDomain R
inst✝⁸ : CommRing S
inst✝⁷ : IsDomain S
inst✝⁶ : Algebra R S
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : ↥(Ideal S)⁰
M : R := ∏ m ∈ finsetApprox bS adm, m
hM : (algebraMap R S) M ≠ 0
b : S
b_mem : b ∈ ↑I
b_ne_zero : b ≠ 0
b_min : ∀ c ∈ ↑I, abv ((Algebra.norm R) c) < abv ((Algebra.norm R) b) → c = 0
r' : S
hr' : (algebraMap R S) M ∣ r'
a : S
ha : a ∈ ↑I
q : S
r : R
r_mem : r ∈ finsetApprox bS adm
lt : abv ((Algebra.norm R) ((algebraMap R S) r * a - q * b)) < abv ((Algebra.norm R) b)
⊢ r ∣ M
Module: Mathlib.NumberTheory.ClassNumber.Finite

Goal state before:
pp: R : Type u_1
S : Type u_2
K : Type u_3
L : Type u_4
inst✝¹⁸ : EuclideanDomain R
inst✝¹⁷ : CommRing S
inst✝¹⁶ : IsDomain S
inst✝¹⁵ : Field K
inst✝¹⁴ : Field L
inst✝¹³ : Algebra R K
inst✝¹² : IsFractionRing R K
inst✝¹¹ : Algebra K L
inst✝¹⁰ : FiniteDimensional K L
inst✝⁹ : Algebra.IsSeparable K L
algRL : Algebra R L
inst✝⁸ : IsScalarTower R K L
inst✝⁷ : Algebra R S
inst✝⁶ : Algebra S L
ist : IsScalarTower R S L
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : Ideal S
⊢ {(algebraMap R S) (∏ m ∈ finsetApprox bS adm, m)} ⊆ ↑I ↔ (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ I

Tactic:
Set.singleton_subset_iff

Goal state after:
R : Type u_1
S : Type u_2
K : Type u_3
L : Type u_4
inst✝¹⁸ : EuclideanDomain R
inst✝¹⁷ : CommRing S
inst✝¹⁶ : IsDomain S
inst✝¹⁵ : Field K
inst✝¹⁴ : Field L
inst✝¹³ : Algebra R K
inst✝¹² : IsFractionRing R K
inst✝¹¹ : Algebra K L
inst✝¹⁰ : FiniteDimensional K L
inst✝⁹ : Algebra.IsSeparable K L
algRL : Algebra R L
inst✝⁸ : IsScalarTower R K L
inst✝⁷ : Algebra R S
inst✝⁶ : Algebra S L
ist : IsScalarTower R S L
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : Ideal S
⊢ (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ ↑I ↔ (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ I
Module: Mathlib.NumberTheory.ClassNumber.Finite

Goal state before:
pp: R : Type u_1
S : Type u_2
K : Type u_3
L : Type u_4
inst✝¹⁸ : EuclideanDomain R
inst✝¹⁷ : CommRing S
inst✝¹⁶ : IsDomain S
inst✝¹⁵ : Field K
inst✝¹⁴ : Field L
inst✝¹³ : Algebra R K
inst✝¹² : IsFractionRing R K
inst✝¹¹ : Algebra K L
inst✝¹⁰ : FiniteDimensional K L
inst✝⁹ : Algebra.IsSeparable K L
algRL : Algebra R L
inst✝⁸ : IsScalarTower R K L
inst✝⁷ : Algebra R S
inst✝⁶ : Algebra S L
ist : IsScalarTower R S L
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : Ideal S
⊢ Ideal.span {(algebraMap R S) (∏ m ∈ finsetApprox bS adm, m)} ≤ I ↔
    (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ (Equiv.refl (Ideal S)) I

Tactic:
rw [Equiv.refl_apply, Ideal.span_le, Set.singleton_subset_iff]

Goal state after:
R : Type u_1
S : Type u_2
K : Type u_3
L : Type u_4
inst✝¹⁸ : EuclideanDomain R
inst✝¹⁷ : CommRing S
inst✝¹⁶ : IsDomain S
inst✝¹⁵ : Field K
inst✝¹⁴ : Field L
inst✝¹³ : Algebra R K
inst✝¹² : IsFractionRing R K
inst✝¹¹ : Algebra K L
inst✝¹⁰ : FiniteDimensional K L
inst✝⁹ : Algebra.IsSeparable K L
algRL : Algebra R L
inst✝⁸ : IsScalarTower R K L
inst✝⁷ : Algebra R S
inst✝⁶ : Algebra S L
ist : IsScalarTower R S L
abv : AbsoluteValue R ℤ
ι : Type u_5
inst✝⁵ : DecidableEq ι
inst✝⁴ : Fintype ι
bS : Basis ι R S
adm : abv.IsAdmissible
inst✝³ : Infinite R
inst✝² : DecidableEq R
inst✝¹ : IsDedekindDomain S
inst✝ : Algebra.IsAlgebraic R S
I : Ideal S
⊢ (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ ↑I ↔ (algebraMap R S) (∏ m ∈ finsetApprox bS adm, m) ∈ I
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: a b : ℝ
hab : a ≤ b
one_lt : 1 < a
⊢ IntervalIntegrable (fun x ↦ 1 / log x ^ 2) volume a b

Tactic:
apply intervalIntegrable_one_div_log_sq

Goal state after:
case one_lt_a
a b : ℝ
hab : a ≤ b
one_lt : 1 < a
⊢ 1 < a

case one_lt_b
a b : ℝ
hab : a ≤ b
one_lt : 1 < a
⊢ 1 < b
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: case hab
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ IntervalIntegrable (fun t ↦ 1 / log t ^ 2) volume 2 √x

Tactic:
apply intervalIntegrable_one_div_log_sq

Goal state after:
case hab.one_lt_a
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ 1 < 2

case hab.one_lt_b
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ 1 < √x
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: case hbc
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ IntervalIntegrable (fun t ↦ 1 / log t ^ 2) volume (√x) x

Tactic:
apply intervalIntegrable_one_div_log_sq

Goal state after:
case hbc.one_lt_a
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ 1 < √x

case hbc.one_lt_b
x : ℝ
hx : 4 ≤ x
two_le_sqrt : 2 ≤ √x
sqrt_le_x : √x ≤ x
⊢ 1 < x
Module: Mathlib.RingTheory.Discriminant

Goal state before:
pp: A : Type u
B : Type v
ι : Type w
inst✝⁵ : DecidableEq ι
inst✝⁴ : CommRing A
inst✝³ : CommRing B
inst✝² : Algebra A B
inst✝¹ : Fintype ι
inst✝ : IsDomain A
b : ι → B
hli : ¬LinearIndependent A b
⊢ discr A b = 0

Tactic:
obtain ⟨g, hg, i, hi⟩ := Fintype.not_linearIndependent_iff.1 hli

Goal state after:
A : Type u
B : Type v
ι : Type w
inst✝⁵ : DecidableEq ι
inst✝⁴ : CommRing A
inst✝³ : CommRing B
inst✝² : Algebra A B
inst✝¹ : Fintype ι
inst✝ : IsDomain A
b : ι → B
hli : ¬LinearIndependent A b
g : ι → A
hg : ∑ i, g i • b i = 0
i : ι
hi : g i ≠ 0
⊢ discr A b = 0
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: case inr.inr
n : ℕ
h : 1 < n
⊢ (↑n * log 2 - log (↑n + 1)) / log ↑n ≤ ↑(π n)

Tactic:
grw [div_le_iff₀ (log_pos (mod_cast h)), ← psi_le_primeCounting_mul_log, psi_ge]

Goal state after:
Module: Mathlib.NumberTheory.Padics.RingHoms

Goal state before:
pp: case mp
p : ℕ
hp_prime : Fact (Nat.Prime p)
R : Type u_1
inst✝ : NonAssocSemiring R
g g' : R →+* ℤ_[p]
⊢ (∀ (n : ℕ), (toZModPow n).comp g = (toZModPow n).comp g') → g = g'

Tactic:
intro hg
    ext x : 1
    apply ext_of_toZModPow.mp
    intro n
    change (toZModPow n).comp g x = (toZModPow n).comp g' x
    rw [hg n]

Goal state after:
Module: Mathlib.NumberTheory.Cyclotomic.Discriminant

Goal state before:
pp: case e_a.inl.succ
K : Type u
L : Type v
ζ : L
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
mf : Module.Finite K L
se : Algebra.IsSeparable K L
hp : Fact (Nat.Prime 2)
n✝ : ℕ
inst✝ : IsCyclotomicExtension {2 ^ ((n✝ + 1).succ + 1)} K L
hζ : IsPrimitiveRoot ζ (2 ^ ((n✝ + 1).succ + 1))
hirr : Irreducible (cyclotomic (2 ^ ((n✝ + 1).succ + 1)) K)
hk : 2 ^ ((n✝ + 1).succ + 1) ≠ 2
hne : NeZero ↑(2 ^ ((n✝ + 1).succ + 1))
hp2 : 2 = 2 → (n✝ + 1).succ ≠ 0
⊢ (-1) ^ (2 * 2 ^ n✝ * (2 * (2 * 2 ^ n✝) - 1)) = 1

Tactic:
((even_two.mul_right _).mul_right _).neg_one_pow

Goal state after:
Module: Mathlib.NumberTheory.Cyclotomic.Discriminant

Goal state before:
pp: case e_a
p k : ℕ
K : Type u
L : Type v
ζ : L
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
inst✝ : IsCyclotomicExtension {p ^ (k + 1)} K L
hp : Fact (Nat.Prime p)
hζ : IsPrimitiveRoot ζ (p ^ (k + 1))
hirr : Irreducible (cyclotomic (p ^ (k + 1)) K)
hk : p ^ (k + 1) ≠ 2
hne : NeZero ↑(p ^ (k + 1))
mf : Module.Finite K L
se : Algebra.IsSeparable K L
hp2 : p = 2 → k ≠ 0
H :
  (Algebra.norm K) ((aeval ζ) (derivative (minpoly K ζ)) * (ζ ^ p ^ k - 1)) =
    (Algebra.norm K) (↑(p ^ (k + 1)) * ζ ^ (p ^ (k + 1) - 1))
⊢ (Algebra.norm K) ((aeval ζ) (derivative (cyclotomic (p ^ (k + 1)) K))) = ↑p ^ (p ^ k * ((p - 1) * (k + 1) - 1))

Tactic:
have hnorm : (norm K) (ζ ^ p ^ k - 1) = (p : K) ^ p ^ k := by
      by_cases hp : p = 2
      · exact mod_cast hζ.norm_pow_sub_one_eq_prime_pow_of_ne_zero hirr le_rfl (hp2 hp)
      · exact mod_cast hζ.norm_pow_sub_one_of_prime_ne_two hirr le_rfl hp

Goal state after:
case e_a
p k : ℕ
K : Type u
L : Type v
ζ : L
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
inst✝ : IsCyclotomicExtension {p ^ (k + 1)} K L
hp : Fact (Nat.Prime p)
hζ : IsPrimitiveRoot ζ (p ^ (k + 1))
hirr : Irreducible (cyclotomic (p ^ (k + 1)) K)
hk : p ^ (k + 1) ≠ 2
hne : NeZero ↑(p ^ (k + 1))
mf : Module.Finite K L
se : Algebra.IsSeparable K L
hp2 : p = 2 → k ≠ 0
H :
  (Algebra.norm K) ((aeval ζ) (derivative (minpoly K ζ)) * (ζ ^ p ^ k - 1)) =
    (Algebra.norm K) (↑(p ^ (k + 1)) * ζ ^ (p ^ (k + 1) - 1))
hnorm : (Algebra.norm K) (ζ ^ p ^ k - 1) = ↑p ^ p ^ k
⊢ (Algebra.norm K) ((aeval ζ) (derivative (cyclotomic (p ^ (k + 1)) K))) = ↑p ^ (p ^ k * ((p - 1) * (k + 1) - 1))
Module: Mathlib.NumberTheory.PellMatiyasevic

Goal state before:
pp: case h₁
a : ℕ
a1 : 1 < a
n k : ℕ
hx : xn a1 (n * k) ≡ xn a1 n ^ k [MOD yn a1 n ^ 2]
hy : yn a1 (n * k) ≡ k * xn a1 n ^ (k - 1) * yn a1 n [MOD yn a1 n ^ 3]
L : xn a1 (n * k) * xn a1 n + d a1 * yn a1 (n * k) * yn a1 n ≡ xn a1 n ^ k * xn a1 n + 0 [MOD yn a1 n ^ 2]
⊢ xn a1 (n * k) * yn a1 n ≡ xn a1 n ^ k * yn a1 n [MOD yn a1 n ^ 3]

Tactic:
rw [_root_.pow_succ]
        exact hx.mul_right' _

Goal state after:
Module: Mathlib.NumberTheory.Zsqrtd.Basic

Goal state before:
pp: case mp
d : ℤ
hd : d < 0
z : ℤ√d
h : z.re * z.re + -(d * (z.im * z.im)) = 0
left : 0 ≤ z.re * z.re
⊢ z = 0

Tactic:
have right := neg_nonneg.mpr (mul_nonpos_of_nonpos_of_nonneg hd.le (mul_self_nonneg z.im))

Goal state after:
case mp
d : ℤ
hd : d < 0
z : ℤ√d
h : z.re * z.re + -(d * (z.im * z.im)) = 0
left : 0 ≤ z.re * z.re
right : 0 ≤ -(d * (z.im * z.im))
⊢ z = 0
Module: Mathlib.NumberTheory.Zsqrtd.Basic

Goal state before:
pp: d : ℤ
h_nonsquare : ∀ (n : ℤ), d ≠ n * n
a : ℤ√d
ha : a.re * a.re = d * a.im * a.im
h : d < 0
this : a.re * a.re = 0
⊢ a.re = re 0 ∧ a.im = im 0

Tactic:
rw [eq_zero_of_mul_self_eq_zero this] at ha ⊢
      simpa only [true_and, or_self_right, re_zero, im_zero, eq_self_iff_true, zero_eq_mul,
        mul_zero, mul_eq_zero, h.ne, false_or, or_self_iff] using ha

Goal state after:
Module: Mathlib.NumberTheory.SmoothNumbers

Goal state before:
pp: s : Finset ℕ
m n : ℕ
hm : m ∈ factoredNumbers s
hn : n ∈ factoredNumbers s
hm' : m.primeFactors ⊆ s
hn' : n.primeFactors ⊆ s
⊢ m * n ∈ factoredNumbers s

Tactic:
exact mem_factoredNumbers_of_primeFactors_subset (mul_ne_zero hm.1 hn.1)
    <| primeFactors_mul hm.1 hn.1 ▸ Finset.union_subset hm' hn'

Goal state after:
Module: Mathlib.NumberTheory.LSeries.MellinEqDirichlet

Goal state before:
pp: case inr
ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
q : ι → ℝ
F : ℝ → ℂ
s : ℂ
hq : ∀ (i : ι), a i = 0 ∨ 0 < q i
hs : 0 < s.re
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ a i * ↑(rexp (-π * q i * t))) (F t)
h_sum : Summable fun i ↦ ‖a i‖ / q i ^ s.re
hp : ∀ (i : ι), a i = 0 ∨ 0 < π * q i
i : ι
h : 0 < q i
⊢ a i / ↑(π * q i) ^ s = ↑π ^ (-s) * a i / ↑(q i) ^ s

Tactic:
· rw [ofReal_mul, mul_cpow_ofReal_nonneg pi_pos.le h.le, ← div_div, cpow_neg,
          ← div_eq_inv_mul]

Goal state after:
Module: Mathlib.NumberTheory.LSeries.MellinEqDirichlet

Goal state before:
pp: ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
p : ι → ℝ
F : ℝ → ℂ
s : ℂ
hp : ∀ (i : ι), 0 ≤ p i
hs : 0 < s.re
h_sum : Summable fun i ↦ ‖a i‖ / p i ^ s.re
hs' : s ≠ 0
a' : ι → ℂ := fun i ↦ if p i = 0 then 0 else a i
hp' : ∀ (i : ι), a' i = 0 ∨ 0 < p i
this : ∀ (i : ι) (t : ℝ), (if p i = 0 then 0 else a i * ↑(rexp (-π * p i * t))) = a' i * ↑(rexp (-π * p i * t))
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ a' i * ↑(rexp (-π * p i * t))) (F t)
i : ι
⊢ ↑π ^ (-s) * Complex.Gamma s * a i / ↑(p i) ^ s = ↑π ^ (-s) * Complex.Gamma s * a' i / ↑(p i) ^ s

Tactic:
rcases eq_or_ne (p i) 0 with h | h

Goal state after:
case inl
ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
p : ι → ℝ
F : ℝ → ℂ
s : ℂ
hp : ∀ (i : ι), 0 ≤ p i
hs : 0 < s.re
h_sum : Summable fun i ↦ ‖a i‖ / p i ^ s.re
hs' : s ≠ 0
a' : ι → ℂ := fun i ↦ if p i = 0 then 0 else a i
hp' : ∀ (i : ι), a' i = 0 ∨ 0 < p i
this : ∀ (i : ι) (t : ℝ), (if p i = 0 then 0 else a i * ↑(rexp (-π * p i * t))) = a' i * ↑(rexp (-π * p i * t))
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ a' i * ↑(rexp (-π * p i * t))) (F t)
i : ι
h : p i = 0
⊢ ↑π ^ (-s) * Complex.Gamma s * a i / ↑(p i) ^ s = ↑π ^ (-s) * Complex.Gamma s * a' i / ↑(p i) ^ s

case inr
ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
p : ι → ℝ
F : ℝ → ℂ
s : ℂ
hp : ∀ (i : ι), 0 ≤ p i
hs : 0 < s.re
h_sum : Summable fun i ↦ ‖a i‖ / p i ^ s.re
hs' : s ≠ 0
a' : ι → ℂ := fun i ↦ if p i = 0 then 0 else a i
hp' : ∀ (i : ι), a' i = 0 ∨ 0 < p i
this : ∀ (i : ι) (t : ℝ), (if p i = 0 then 0 else a i * ↑(rexp (-π * p i * t))) = a' i * ↑(rexp (-π * p i * t))
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ a' i * ↑(rexp (-π * p i * t))) (F t)
i : ι
h : p i ≠ 0
⊢ ↑π ^ (-s) * Complex.Gamma s * a i / ↑(p i) ^ s = ↑π ^ (-s) * Complex.Gamma s * a' i / ↑(p i) ^ s
Module: Mathlib.NumberTheory.LSeries.AbstractFuncEq

Goal state before:
pp: E : Type u_1
inst✝² : NormedAddCommGroup E
inst✝¹ : NormedSpace ℂ E
P : WeakFEPair E
inst✝ : CompleteSpace E
s : ℂ
hs : P.k < s.re
h_re1 : -1 < (s - 1).re
h_re2 : -1 < (s - ↑P.k - 1).re
⊢ -(P.ε * ((∫ (x : ℝ) in 0..1, ↑x ^ (s - ↑P.k - 1)) * 1)) = P.ε / (↑P.k - s) * 1

Tactic:
simp [integral_cpow (.inl h_re2), zero_cpow (show s - P.k ≠ 0 by grind [P.hk, ofReal_re])]

Goal state after:
E : Type u_1
inst✝² : NormedAddCommGroup E
inst✝¹ : NormedSpace ℂ E
P : WeakFEPair E
inst✝ : CompleteSpace E
s : ℂ
hs : P.k < s.re
h_re1 : -1 < (s - 1).re
h_re2 : -1 < (s - ↑P.k - 1).re
⊢ -(P.ε * (s - ↑P.k)⁻¹) = P.ε / (↑P.k - s)
Module: Mathlib.NumberTheory.LSeries.AbstractFuncEq

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
s : ℂ
⊢ P.symm.Λ₀ s = P.symm.Λ s + (1 / s) • P.g₀ + (P.ε⁻¹ / (↑P.k - s)) • P.f₀

Tactic:
by
  simp [P.symm.Λ₀_eq]

Goal state after:
Module: Mathlib.NumberTheory.LSeries.AbstractFuncEq

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
⊢ Tendsto (fun s ↦ s • P.Λ s) (𝓝[≠] 0) (𝓝 (-P.f₀))

Tactic:
simp_rw [Λ, smul_sub, (by simp : 𝓝 (-P.f₀) = 𝓝 (((0 : ℂ) • P.Λ₀ 0) - P.f₀ - 0))]

Goal state after:
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
⊢ Tendsto (fun s ↦ s • P.Λ₀ s - s • (1 / s) • P.f₀ - s • (P.ε / (↑P.k - s)) • P.g₀) (𝓝[≠] 0) (𝓝 (0 • P.Λ₀ 0 - P.f₀ - 0))
Module: Mathlib.NumberTheory.LSeries.AbstractFuncEq

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
hP : IsStrongFEPair P
s : ℂ
t : ℝ
⊢ t ∈ {1}ᶜ →
    t ∈ Ioi 0 →
      ↑t ^ (s - 1) • (((Ioi 1).indicator fun x ↦ P.f x) + (Ioo 0 1).indicator fun x ↦ P.f x) t = ↑t ^ (s - 1) • P.f t

Tactic:
(ht₁ : t ≠ 1)

Goal state after:
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
hP : IsStrongFEPair P
s : ℂ
t : ℝ
ht₁ : t ≠ 1
⊢ t ∈ Ioi 0 →
    ↑t ^ (s - 1) • (((Ioi 1).indicator fun x ↦ P.f x) + (Ioo 0 1).indicator fun x ↦ P.f x) t = ↑t ^ (s - 1) • P.f t
Module: Mathlib.NumberTheory.LSeries.AbstractFuncEq

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
hP : IsStrongFEPair P
s : ℂ
t : ℝ
ht₁ : t ≠ 1
ht₀ : 0 < t
⊢ ↑t ^ (s - 1) • (((Ioi 1).indicator fun x ↦ P.f x) + (Ioo 0 1).indicator fun x ↦ P.f x) t = ↑t ^ (s - 1) • P.f t

Tactic:
by_cases ht : t < 1

Goal state after:
case pos
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
hP : IsStrongFEPair P
s : ℂ
t : ℝ
ht₁ : t ≠ 1
ht₀ : 0 < t
ht : t < 1
⊢ ↑t ^ (s - 1) • (((Ioi 1).indicator fun x ↦ P.f x) + (Ioo 0 1).indicator fun x ↦ P.f x) t = ↑t ^ (s - 1) • P.f t

case neg
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
P : WeakFEPair E
hP : IsStrongFEPair P
s : ℂ
t : ℝ
ht₁ : t ≠ 1
ht₀ : 0 < t
ht : ¬t < 1
⊢ ↑t ^ (s - 1) • (((Ioi 1).indicator fun x ↦ P.f x) + (Ioo 0 1).indicator fun x ↦ P.f x) t = ↑t ^ (s - 1) • P.f t
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaOdd

Goal state before:
pp: case inr
z τ : ℂ
hτ : τ ≠ 0
aux1 : -2 * ↑π / (2 * ↑π * I) = I
⊢ 1 / (-I * τ) ^ (1 / 2) * (-I / (-I * τ) ^ 1) * cexp (-↑π * I * z ^ 2 / τ) *
      (jacobiTheta₂' (z / τ) (-1 / τ) - 2 * ↑π * I * z * jacobiTheta₂ (z / τ) (-1 / τ)) =
    -2 * ↑π / (-I * τ) ^ (3 / 2) * jacobiTheta₂'' z (-1 / τ)

Tactic:
div_mul_div_comm,

Goal state after:
case inr
z τ : ℂ
hτ : τ ≠ 0
aux1 : -2 * ↑π / (2 * ↑π * I) = I
⊢ 1 * -I / ((-I * τ) ^ (1 / 2) * (-I * τ) ^ 1) * cexp (-↑π * I * z ^ 2 / τ) *
      (jacobiTheta₂' (z / τ) (-1 / τ) - 2 * ↑π * I * z * jacobiTheta₂ (z / τ) (-1 / τ)) =
    -2 * ↑π / (-I * τ) ^ (3 / 2) * jacobiTheta₂'' z (-1 / τ)
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaOdd

Goal state before:
pp: case H
x : ℝ
hx : x ≤ 0
a' : ℝ
⊢ oddKernel (↑a') x = 0

Tactic:
rw [← ofReal_eq_zero, oddKernel_def', jacobiTheta₂_undef, jacobiTheta₂'_undef, zero_div, zero_add,
    mul_zero, mul_zero] <;>
  simpa

Goal state after:
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaOdd

Goal state before:
pp: case H.refine_2.hf
a x : ℝ
hx : x ∈ Ioi 0
hf : Continuous fun u ↦ (↑a * I * ↑u, I * ↑u)
⊢ ContinuousAt (fun x ↦ jacobiTheta₂' (↑a * I * ↑x) (I * ↑x) / (2 * ↑π * I)) x

pp: case hg
a x : ℝ
hx : x ∈ Ioi 0
hf : Continuous fun u ↦ (↑a * I * ↑u, I * ↑u)
⊢ ContinuousAt (fun x ↦ ↑a * jacobiTheta₂ (↑a * I * ↑x) (I * ↑x)) x

Tactic:
· exact ((continuousAt_jacobiTheta₂' (a * I * x) (by rwa [I_mul_im, ofReal_re])).comp
        (f := fun u : ℝ ↦ (a * I * u, I * u)) hf.continuousAt).div_const _

Goal state after:
case hg
a x : ℝ
hx : x ∈ Ioi 0
hf : Continuous fun u ↦ (↑a * I * ↑u, I * ↑u)
⊢ ContinuousAt (fun x ↦ ↑a * jacobiTheta₂ (↑a * I * ↑x) (I * ↑x)) x
Module: Mathlib.NumberTheory.LSeries.MellinEqDirichlet

Goal state before:
pp: case inr
ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
r : ι → ℝ
F : ℝ → ℂ
s : ℂ
hs : 0 < s.re
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ if r i = 0 then 0 else a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t))) (F t)
h_sum : Summable fun i ↦ ‖a i‖ / |r i| ^ s.re
hs₁ : s ≠ 0
hs₂ : 0 < (s + 1).re
hs₃ : s + 1 ≠ 0
this :
  ∀ (i : ι) (t : ℝ),
    a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t)) = if r i = 0 then 0 else a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t))
i : ι
h : r i ≠ 0
⊢ ‖a i‖ * |r i| / |r i| ^ s.re / |r i| = ‖a i‖ / |r i| ^ s.re

Tactic:
div_right_comm,

Goal state after:
case inr
ι : Type u_1
inst✝ : Countable ι
a : ι → ℂ
r : ι → ℝ
F : ℝ → ℂ
s : ℂ
hs : 0 < s.re
hF : ∀ t ∈ Ioi 0, HasSum (fun i ↦ if r i = 0 then 0 else a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t))) (F t)
h_sum : Summable fun i ↦ ‖a i‖ / |r i| ^ s.re
hs₁ : s ≠ 0
hs₂ : 0 < (s + 1).re
hs₃ : s + 1 ≠ 0
this :
  ∀ (i : ι) (t : ℝ),
    a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t)) = if r i = 0 then 0 else a i * ↑(r i) * ↑(rexp (-π * r i ^ 2 * t))
i : ι
h : r i ≠ 0
⊢ ‖a i‖ * |r i| / |r i| / |r i| ^ s.re = ‖a i‖ / |r i| ^ s.re
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaEven

Goal state before:
pp: a p : ℝ
hp : 0 < p
hp' : (fun t ↦ HurwitzKernelBounds.F_nat 0 1 t - if 1 = 0 then 1 else 0) =O[atTop] fun t ↦ rexp (-p * t)
t : ℝ
ht : 0 < t
n : ℕ
⊢ ‖2‖ * ‖Real.cos (2 * π * a * (↑n + 1))‖ * ‖rexp (-π * (↑n + 1) ^ 2 * t)‖ ≤ 2 * HurwitzKernelBounds.f_nat 0 1 t n

Tactic:
norm_two,

Goal state after:
a p : ℝ
hp : 0 < p
hp' : (fun t ↦ HurwitzKernelBounds.F_nat 0 1 t - if 1 = 0 then 1 else 0) =O[atTop] fun t ↦ rexp (-p * t)
t : ℝ
ht : 0 < t
n : ℕ
⊢ 2 * ‖Real.cos (2 * π * a * (↑n + 1))‖ * ‖rexp (-π * (↑n + 1) ^ 2 * t)‖ ≤ 2 * HurwitzKernelBounds.f_nat 0 1 t n
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaEven

Goal state before:
pp: case refine_2
a : UnitAddCircle
s : ℂ
hs : s ≠ 0
hs' : s ≠ 1 ∨ a ≠ 0
⊢ s / 2 ≠ ↑(hurwitzEvenFEPair a).symm.k ∨ (hurwitzEvenFEPair a).symm.g₀ = 0

Tactic:
change s / 2 ≠ ↑(1 / 2 : ℝ) ∨ (if a = 0 then 1 else 0) = 0
    refine Or.imp (fun h ↦ ?_) (fun ha ↦ ?_) hs'
    · simpa [push_cast] using h ∘ (div_left_inj' two_ne_zero).mp
    · simpa

Goal state after:
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaOdd

Goal state before:
pp: case h
a p : ℝ
hp : 0 < p
hp' : HurwitzKernelBounds.F_nat 1 0 =O[atTop] fun t ↦ rexp (-p * t)
t : ℝ
ht : 0 < t
n : ℕ
⊢ ‖2‖ * ‖↑n‖ * ‖Real.sin (2 * π * a * ↑n)‖ * ‖rexp (-π * ↑n ^ 2 * t)‖ ≤ 2 * HurwitzKernelBounds.f_nat 1 0 t n

Tactic:
norm_two,

Goal state after:
case h
a p : ℝ
hp : 0 < p
hp' : HurwitzKernelBounds.F_nat 1 0 =O[atTop] fun t ↦ rexp (-p * t)
t : ℝ
ht : 0 < t
n : ℕ
⊢ 2 * ‖↑n‖ * ‖Real.sin (2 * π * a * ↑n)‖ * ‖rexp (-π * ↑n ^ 2 * t)‖ ≤ 2 * HurwitzKernelBounds.f_nat 1 0 t n
Module: Mathlib.NumberTheory.PythagoreanTriples

Goal state before:
pp: z0 : ℤ
k : ℕ
x0 y0 : ℤ
k0 : 0 < k
h2 : x0.gcd y0 = 1
h0 : ¬(x0 * ↑k).gcd (y0 * ↑k) = 0
h : PythagoreanTriple (x0 * ↑k) (y0 * ↑k) (↑((x0 * ↑k).gcd (y0 * ↑k)) * z0)
⊢ ¬k = 0

Tactic:
rwa [pos_iff_ne_zero] at k0

Goal state after:
Module: Mathlib.NumberTheory.PythagoreanTriples

Goal state before:
pp: x y z : ℤ
h : PythagoreanTriple x y z
hc : x.gcd y = 1
H : ¬y.gcd z = 1
p : ℕ
hp : Nat.Prime p
hpy : p ∣ y.natAbs
hpz : p ∣ z.natAbs
⊢ p ∣ x.gcd y

Tactic:
apply Nat.dvd_gcd (Int.Prime.dvd_natAbs_of_coe_dvd_sq hp _ _) hpy

Goal state after:
x y z : ℤ
h : PythagoreanTriple x y z
hc : x.gcd y = 1
H : ¬y.gcd z = 1
p : ℕ
hp : Nat.Prime p
hpy : p ∣ y.natAbs
hpz : p ∣ z.natAbs
⊢ ↑p ∣ x ^ 2