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

Goal state before:
pp: R : Type u_1
inst✝ : AddCommMonoid R
f : ℕ → R
x : ℝ
hx : 0 ≤ x
N : ℕ
hN : ⌊log x / log 2⌋₊ ≤ N
⊢ ∑ n ∈ Ioc 0 ⌊x⌋₊ with IsPrimePow n, f n =
    ∑ x ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) with
      match x with
      | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊,
      match x with
      | (k, p) => f (p ^ k)

Tactic:
refine (sum_bij (i := fun ⟨k, p⟩ _ ↦ p ^ k) ?_ ?_ ?_ ?_).symm

Goal state after:
case refine_1
R : Type u_1
inst✝ : AddCommMonoid R
f : ℕ → R
x : ℝ
hx : 0 ≤ x
N : ℕ
hN : ⌊log x / log 2⌋₊ ≤ N
⊢ ∀ (a : ℕ × ℕ)
    (ha :
      a ∈
        {x_1 ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) |
          match x_1 with
          | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊}),
    (match a, ha with
      | (k, p), x => p ^ k) ∈
      {n ∈ Ioc 0 ⌊x⌋₊ | IsPrimePow n}

case refine_2
R : Type u_1
inst✝ : AddCommMonoid R
f : ℕ → R
x : ℝ
hx : 0 ≤ x
N : ℕ
hN : ⌊log x / log 2⌋₊ ≤ N
⊢ ∀ (a₁ : ℕ × ℕ)
    (ha₁ :
      a₁ ∈
        {x_1 ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) |
          match x_1 with
          | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊})
    (a₂ : ℕ × ℕ)
    (ha₂ :
      a₂ ∈
        {x_1 ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) |
          match x_1 with
          | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊}),
    ((match a₁, ha₁ with
        | (k, p), x => p ^ k) =
        match a₂, ha₂ with
        | (k, p), x => p ^ k) →
      a₁ = a₂

case refine_3
R : Type u_1
inst✝ : AddCommMonoid R
f : ℕ → R
x : ℝ
hx : 0 ≤ x
N : ℕ
hN : ⌊log x / log 2⌋₊ ≤ N
⊢ ∀ b ∈ {n ∈ Ioc 0 ⌊x⌋₊ | IsPrimePow n},
    ∃ a,
      ∃ (ha :
        a ∈
          {x_1 ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) |
            match x_1 with
            | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊}),
        (match a, ha with
          | (k, p), x => p ^ k) =
          b

case refine_4
R : Type u_1
inst✝ : AddCommMonoid R
f : ℕ → R
x : ℝ
hx : 0 ≤ x
N : ℕ
hN : ⌊log x / log 2⌋₊ ≤ N
⊢ ∀ (a : ℕ × ℕ)
    (ha :
      a ∈
        {x_1 ∈ Icc 1 N ×ˢ filter Nat.Prime (Ioc 0 ⌊x⌋₊) |
          match x_1 with
          | (k, p) => p ≤ ⌊x ^ (↑k)⁻¹⌋₊}),
    (match a with
      | (k, p) => f (p ^ k)) =
      f
        (match a, ha with
        | (k, p), x => p ^ k)
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: case inr
n : ℕ
hn : n > 0
⊢ ↑n * log 2 - log (↑n + 1) - 2 * √↑n * log ↑n ≤ θ ↑n

Tactic:
linarith [psi_ge n, psi_sub_theta_le (x := n) (mod_cast (one_le_of_lt hn))]

Goal state after:
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: x : ℝ
hx : 0 ≤ x
n m : ℕ
hnm : n ≤ m
hn : 1 ≤ n
hm : 1 ≤ m
h : 1 < x
⊢ ↑n ≤ ↑m

Tactic:
norm_num [hnm]

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

Goal state before:
pp: case right
p : ℕ
hp_prime : Fact (Nat.Prime p)
x : ℤ_[p]
n : ℕ
hn₁ : n < p
hn₂ : x - ↑n ∈ maximalIdeal ℤ_[p]
m : ℕ
x✝ : (fun n ↦ n < p ∧ x - ↑n ∈ maximalIdeal ℤ_[p]) m
hm₁ : m < p
hm₂ : x - ↑m ∈ maximalIdeal ℤ_[p]
this : ↑m = ↑n
⊢ m = n

Tactic:
rwa [ZMod.natCast_eq_natCast_iff, ModEq, mod_eq_of_lt hn₁, mod_eq_of_lt hm₁] at this

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

Goal state before:
pp: p : ℕ
hp_prime : Fact (Nat.Prime p)
x : ℤ_[p]
⊢ ‖x - ↑x.zmodRepr‖ < 1

Tactic:
by
  rw [← mem_nonunits, ← IsLocalRing.mem_maximalIdeal]
  exact sub_zmodRepr_mem _

Goal state after:
Module: Mathlib.NumberTheory.Chebyshev

Goal state before:
pp: case pos
x : ℝ
hx : 2 ≤ x
a : ℕ → ℝ := (Set.ofPred Nat.Prime).indicator fun n ↦ log ↑n
n : ℕ
hn : n ∈ Icc 0 ⌊x⌋₊
h : Nat.Prime n
⊢ 1 = (log ↑n)⁻¹ * a n

pp: case neg
x : ℝ
hx : 2 ≤ x
a : ℕ → ℝ := (Set.ofPred Nat.Prime).indicator fun n ↦ log ↑n
n : ℕ
hn : n ∈ Icc 0 ⌊x⌋₊
h : ¬Nat.Prime n
⊢ 0 = (log ↑n)⁻¹ * a n

Tactic:
· have : log n ≠ 0 := log_ne_zero_of_pos_of_ne_one (mod_cast h.pos) (mod_cast h.ne_one)
      simp [a, h, field]

Goal state after:
case neg
x : ℝ
hx : 2 ≤ x
a : ℕ → ℝ := (Set.ofPred Nat.Prime).indicator fun n ↦ log ↑n
n : ℕ
hn : n ∈ Icc 0 ⌊x⌋₊
h : ¬Nat.Prime n
⊢ 0 = (log ↑n)⁻¹ * a n
Module: Mathlib.NumberTheory.Padics.RingHoms

Goal state before:
pp: R : Type u_1
inst✝ : NonAssocSemiring R
p : ℕ
f : (k : ℕ) → R →+* ZMod (p ^ k)
⊢ nthHom f 0 = 0

Tactic:
simp +unfoldPartialApp [nthHom, Pi.zero_def]

Goal state after:
Module: Mathlib.NumberTheory.PellMatiyasevic

Goal state before:
pp: a : ℕ
a1 : 1 < a
x y : ℕ
h : IsPell { re := ↑x, im := ↑y }
⊢ ↑(x * x - d a1 * y * y) = ↑1

Tactic:
rw [Int.ofNat_sub (Int.le_of_ofNat_le_ofNat <| Int.le.intro_sub _ h)]; exact h

Goal state after:
Module: Mathlib.NumberTheory.PellMatiyasevic

Goal state before:
pp: a : ℕ
a1 : 1 < a
n : ℕ
b : ℤ√↑(d a1)
h1 : 1 ≤ b
hp : IsPell b
h : b ≤ pellZd a1 (n + 1)
a1p : 0 ≤ { re := ↑a, im := 1 }
am1p : 0 ≤ { re := ↑a, im := -1 }
a1m : { re := ↑a, im := 1 } * { re := ↑a, im := -1 } = 1
ha : { re := ↑a, im := 1 } ≤ b
t : b * { re := ↑a, im := -1 } ≤ pellZd a1 n * ({ re := ↑a, im := 1 } * { re := ↑a, im := -1 })
⊢ b * { re := ↑a, im := -1 } ≤ pellZd a1 n

Tactic:
a1m,

Goal state after:
a : ℕ
a1 : 1 < a
n : ℕ
b : ℤ√↑(d a1)
h1 : 1 ≤ b
hp : IsPell b
h : b ≤ pellZd a1 (n + 1)
a1p : 0 ≤ { re := ↑a, im := 1 }
am1p : 0 ≤ { re := ↑a, im := -1 }
a1m : { re := ↑a, im := 1 } * { re := ↑a, im := -1 } = 1
ha : { re := ↑a, im := 1 } ≤ b
t : b * { re := ↑a, im := -1 } ≤ pellZd a1 n * 1
⊢ b * { re := ↑a, im := -1 } ≤ pellZd a1 n
Module: Mathlib.NumberTheory.PellMatiyasevic

Goal state before:
pp: a : ℕ
a1 : 1 < a
n : ℕ
⊢ xn a1 (n + 2) + xn a1 n = 2 * a * xn a1 (n + 1) ∧ yn a1 (n + 2) + yn a1 n = 2 * a * yn a1 (n + 1)

Tactic:
have := pellZd_succ_succ a1 n; unfold pellZd at this
  rw [Zsqrtd.nsmul_val (2 * a : ℕ)] at this
  injection this with h₁ h₂
  grind

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

Goal state before:
pp: d : ℕ
a : ℤ√↑d
x y✝ : ℕ
h : a ≤ { re := ↑x, im := ↑(y✝ + 1) }
y : ℕ
⊢ SqLe y d (d * y) 1

Tactic:
by
    simpa [SqLe, mul_comm, mul_left_comm] using Nat.mul_le_mul_right (y * y) (Nat.le_mul_self d)

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

Goal state before:
pp: case pos
K : Type u
L : Type v
ζ : L
inst✝² : Field K
inst✝¹ : Field L
inst✝ : Algebra K L
hp : Fact (Nat.Prime 2)
hcycl✝ : IsCyclotomicExtension {2 ^ (0 + 1)} K L
hcycl : IsCyclotomicExtension {2} K L
hζ✝ : IsPrimitiveRoot ζ (2 ^ (0 + 1))
hζ : IsPrimitiveRoot ζ 2
hirr : Irreducible (cyclotomic (2 ^ (0 + 1)) K)
this : (minpoly K ζ).natDegree = 1
e : Fin (minpoly K ζ).natDegree ≃ Fin 1
⊢ discr K ((fun i ↦ ζ ^ ↑i) ∘ ⇑e.symm) = (-1) ^ (φ (2 ^ (0 + 1)) / 2) * ↑2 ^ (2 ^ (0 + 1 - 1) * ((2 - 1) * (0 + 1) - 1))

Tactic:
simp only [powerBasis_dim,
        zero_add, pow_one, totient_two, reduceDiv, pow_zero, cast_ofNat, tsub_self,
        Nat.add_one_sub_one, mul_one, mul_zero]

Goal state after:
case pos
K : Type u
L : Type v
ζ : L
inst✝² : Field K
inst✝¹ : Field L
inst✝ : Algebra K L
hp : Fact (Nat.Prime 2)
hcycl✝ : IsCyclotomicExtension {2 ^ (0 + 1)} K L
hcycl : IsCyclotomicExtension {2} K L
hζ✝ : IsPrimitiveRoot ζ (2 ^ (0 + 1))
hζ : IsPrimitiveRoot ζ 2
hirr : Irreducible (cyclotomic (2 ^ (0 + 1)) K)
this : (minpoly K ζ).natDegree = 1
e : Fin (minpoly K ζ).natDegree ≃ Fin 1
⊢ discr K ((fun i ↦ ζ ^ ↑i) ∘ ⇑e.symm) = 1
Module: Mathlib.NumberTheory.Zsqrtd.Basic

Goal state before:
pp: d : ℕ
dnsq : Nonsquare d
x y : ℕ
e : (x + 1) * (x + 1) = d * (y + 1) * (y + 1)
⊢ False

Tactic:
have t := (divides_sq_eq_zero e).left
  contradiction

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

Goal state before:
pp: ξ : ℝ
a b : ℤ
x✝ : b ≠ 0
h : ξ = ↑a / ↑b
q : ℚ
⊢ 1 / ↑q.den ^ 2 = ↑(1 / ↑q.den ^ 2)

Tactic:
(push_cast; rfl)

Goal state after:
Module: Mathlib.NumberTheory.SmoothNumbers

Goal state before:
pp: case left
s : Finset ℕ
p : ℕ
hp : Prime p
hs : p ∉ s
e m : ℕ
hm₀ : m ≠ 0
hm : ∀ p ∈ m.primeFactorsList, p ∈ s
hpm : ¬p ∣ m
⊢ (p ^ e * m).factorization p = e

pp: case right
s : Finset ℕ
p : ℕ
hp : Prime p
hs : p ∉ s
e m : ℕ
hm₀ : m ≠ 0
hm : ∀ p ∈ m.primeFactorsList, p ∈ s
hpm : ¬p ∣ m
⊢ (List.filter (fun x ↦ decide (x ∈ s)) (p ^ e * m).primeFactorsList).prod = m

Tactic:
· rw [factorization_mul (pow_ne_zero e hp.ne_zero) hm₀, Finsupp.add_apply,
        factorization_pow_self hp, factorization_eq_zero_of_not_dvd hpm, add_zero]

Goal state after:
case right
s : Finset ℕ
p : ℕ
hp : Prime p
hs : p ∉ s
e m : ℕ
hm₀ : m ≠ 0
hm : ∀ p ∈ m.primeFactorsList, p ∈ s
hpm : ¬p ∣ m
⊢ (List.filter (fun x ↦ decide (x ∈ s)) (p ^ e * m).primeFactorsList).prod = m
Module: Mathlib.NumberTheory.DiophantineApproximation.Basic

Goal state before:
pp: ξ : ℝ
u v : ℤ
hv : 2 ≤ v
hcop : IsCoprime u v
left✝ : v = 1 → -(1 / 2) < ξ - ↑u
hv₀ : 0 < ↑v
hv₀' : 0 < 2 * ↑v - 1
hv₁ : 0 < 2 * v - 1
hu₀ : 0 ≤ u - ⌊ξ⌋ * v
h : (↑u - ξ * ↑v) * (2 * ↑v - 1) + ↑v * (2 * ↑v - 1) < ↑v * (2 * ↑v - 1) + 1
this : (↑u - ↑⌊ξ⌋ * ↑v) * (2 * ↑v - 1) < (↑u - (ξ * ↑v - ↑v)) * (2 * ↑v - 1)
⊢ (u - ⌊ξ⌋ * v) * (2 * v - 1) < v * (2 * v - 1) + 1

Tactic:
← sub_add,

Goal state after:
ξ : ℝ
u v : ℤ
hv : 2 ≤ v
hcop : IsCoprime u v
left✝ : v = 1 → -(1 / 2) < ξ - ↑u
hv₀ : 0 < ↑v
hv₀' : 0 < 2 * ↑v - 1
hv₁ : 0 < 2 * v - 1
hu₀ : 0 ≤ u - ⌊ξ⌋ * v
h : (↑u - ξ * ↑v) * (2 * ↑v - 1) + ↑v * (2 * ↑v - 1) < ↑v * (2 * ↑v - 1) + 1
this : (↑u - ↑⌊ξ⌋ * ↑v) * (2 * ↑v - 1) < (↑u - ξ * ↑v + ↑v) * (2 * ↑v - 1)
⊢ (u - ⌊ξ⌋ * v) * (2 * v - 1) < v * (2 * v - 1) + 1
Module: Mathlib.NumberTheory.EulerProduct.Basic

Goal state before:
pp: case pos.left
R : Type u_1
inst✝¹ : NormedCommRing R
f : ℕ → R
inst✝ : CompleteSpace R
hf₁ : f 1 = 1
hmul : ∀ {m n : ℕ}, m.Coprime n → f (m * n) = f m * f n
hsum : ∀ {p : ℕ}, Nat.Prime p → Summable fun n ↦ ‖f (p ^ n)‖
p : ℕ
s : Finset ℕ
hp : p ∉ s
ih : (Summable fun m ↦ ‖f ↑m‖) ∧ HasSum (fun m ↦ f ↑m) (∏ p ∈ s with Nat.Prime p, ∑' (n : ℕ), f (p ^ n))
hpp : Nat.Prime p
⊢ Summable fun x ↦ ‖f (p ^ x.1)‖ * ‖f ↑x.2‖

Tactic:
apply Summable.mul_of_nonneg (hsum hpp) ih.1

Goal state after:
case pos.left.hf'
R : Type u_1
inst✝¹ : NormedCommRing R
f : ℕ → R
inst✝ : CompleteSpace R
hf₁ : f 1 = 1
hmul : ∀ {m n : ℕ}, m.Coprime n → f (m * n) = f m * f n
hsum : ∀ {p : ℕ}, Nat.Prime p → Summable fun n ↦ ‖f (p ^ n)‖
p : ℕ
s : Finset ℕ
hp : p ∉ s
ih : (Summable fun m ↦ ‖f ↑m‖) ∧ HasSum (fun m ↦ f ↑m) (∏ p ∈ s with Nat.Prime p, ∑' (n : ℕ), f (p ^ n))
hpp : Nat.Prime p
⊢ 0 ≤ fun n ↦ ‖f (p ^ n)‖

case pos.left.hg'
R : Type u_1
inst✝¹ : NormedCommRing R
f : ℕ → R
inst✝ : CompleteSpace R
hf₁ : f 1 = 1
hmul : ∀ {m n : ℕ}, m.Coprime n → f (m * n) = f m * f n
hsum : ∀ {p : ℕ}, Nat.Prime p → Summable fun n ↦ ‖f (p ^ n)‖
p : ℕ
s : Finset ℕ
hp : p ∉ s
ih : (Summable fun m ↦ ‖f ↑m‖) ∧ HasSum (fun m ↦ f ↑m) (∏ p ∈ s with Nat.Prime p, ∑' (n : ℕ), f (p ^ n))
hpp : Nat.Prime p
⊢ 0 ≤ fun m ↦ ‖f ↑m‖
Module: Mathlib.NumberTheory.PellMatiyasevic

Goal state before:
pp: case mp
n k : ℕ
hk : 0 < k
hn : 0 < n
w : ℕ := max n k
nw : n ≤ w
kw : k ≤ w
wpos : 0 < w
w1 : 1 < w + 1
⊢ ∃ w a t z,
    ∃ (a1 : 1 < a),
      xn a1 k ≡ yn a1 k * (a - n) + n ^ k [MOD t] ∧
        2 * a * n = t + (n * n + 1) ∧
          n ^ k < t ∧ n ≤ w ∧ k ≤ w ∧ a * a - ((w + 1) * (w + 1) - 1) * (w * z) * (w * z) = 1

Tactic:
set a := xn w1 w

Goal state after:
case mp
n k : ℕ
hk : 0 < k
hn : 0 < n
w : ℕ := max n k
nw : n ≤ w
kw : k ≤ w
wpos : 0 < w
w1 : 1 < w + 1
a : ℕ := xn w1 w
⊢ ∃ w a t z,
    ∃ (a1 : 1 < a),
      xn a1 k ≡ yn a1 k * (a - n) + n ^ k [MOD t] ∧
        2 * a * n = t + (n * n + 1) ∧
          n ^ k < t ∧ n ≤ w ∧ k ≤ w ∧ a * a - ((w + 1) * (w + 1) - 1) * (w * z) * (w * z) = 1
Module: Mathlib.NumberTheory.LSeries.Positivity

Goal state before:
pp: a : ℕ → ℂ
ha₀ : 0 ≤ a
ha₁ : 0 < a 1
f : ℂ → ℂ
hf : Differentiable ℂ f
x : ℝ
hx : abscissaOfAbsConv a ≤ ↑x
hf' : Set.EqOn f (LSeries a) {s | x < s.re}
y : ℝ
hxy : x < max x y + 1
hxy' : abscissaOfAbsConv a < ↑(max x y) + 1
hys : ↑(max x y) + 1 ∈ {s | x < s.re}
hfx : 0 < f (↑(max x y) + 1)
⊢ 0 < f ↑y

Tactic:
refine (hfx.trans_le <| hf.apply_le_of_iteratedDeriv_alternating (fun n _ ↦ ?_) ?_)

Goal state after:
case refine_1
a : ℕ → ℂ
ha₀ : 0 ≤ a
ha₁ : 0 < a 1
f : ℂ → ℂ
hf : Differentiable ℂ f
x : ℝ
hx : abscissaOfAbsConv a ≤ ↑x
hf' : Set.EqOn f (LSeries a) {s | x < s.re}
y : ℝ
hxy : x < max x y + 1
hxy' : abscissaOfAbsConv a < ↑(max x y) + 1
hys : ↑(max x y) + 1 ∈ {s | x < s.re}
hfx : 0 < f (↑(max x y) + 1)
n : ℕ
x✝ : n ≠ 0
⊢ 0 ≤ (-1) ^ n * iteratedDeriv n f (↑(max x y) + 1)

case refine_2
a : ℕ → ℂ
ha₀ : 0 ≤ a
ha₁ : 0 < a 1
f : ℂ → ℂ
hf : Differentiable ℂ f
x : ℝ
hx : abscissaOfAbsConv a ≤ ↑x
hf' : Set.EqOn f (LSeries a) {s | x < s.re}
y : ℝ
hxy : x < max x y + 1
hxy' : abscissaOfAbsConv a < ↑(max x y) + 1
hys : ↑(max x y) + 1 ∈ {s | x < s.re}
hfx : 0 < f (↑(max x y) + 1)
⊢ ↑y ≤ ↑(max x y) + 1
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.Bounds

Goal state before:
pp: a : ℝ
ha : 0 ≤ a
t : ℝ
ht : 0 < t
⊢ ‖rexp (-π * t)‖ < 1

Tactic:
simpa only [norm_eq_abs, abs_exp] using exp_lt_aux ht

Goal state after:
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.Bounds

Goal state before:
pp: case inl
aux' : (fun t ↦ ((1 - rexp (-π * t)) ^ 2)⁻¹) =O[atTop] fun x ↦ 1
ha : 0 ≤ 0
⊢ ∃ p,
    0 < p ∧
      (fun t ↦
          rexp (-π * (0 ^ 2 + 1) * t) / (1 - rexp (-π * t)) ^ 2 +
            0 * rexp (-π * 0 ^ 2 * t) / (1 - rexp (-π * t))) =O[atTop]
        fun t ↦ rexp (-p * t)

Tactic:
exact ⟨_, pi_pos, by simpa only [zero_pow two_ne_zero, zero_add, mul_one, zero_mul, zero_div,
      add_zero] using! (isBigO_refl _ _).mul aux'⟩

Goal state after:
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
x : ℝ
hx : x ∈ Ioi 0
⊢ ↑x ^ (s - 1) • (fun x ↦ P.f_modif x - P.f x + P.f₀) x =
    ↑x ^ (s - 1) •
      ((Ioo 0 1).indicator (fun t ↦ P.f₀ - (P.ε * ↑(t ^ (-P.k))) • P.g₀) x + {1}.indicator (fun x ↦ P.f₀ - P.f 1) x)

Tactic:
simp [f_modif_aux1 P hx]

Goal state after:
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.Bounds

Goal state before:
pp: a : UnitAddCircle
⊢ ∃ p, 0 < p ∧ (fun t ↦ F_int 0 a t - if a = 0 then 1 else 0) =O[atTop] fun t ↦ rexp (-p * t)

Tactic:
obtain ⟨a, ha, rfl⟩ := a.eq_coe_Ico

Goal state after:
a : ℝ
ha : a ∈ Ico 0 1
⊢ ∃ p, 0 < p ∧ (fun t ↦ F_int 0 (↑a) t - if ↑a = 0 then 1 else 0) =O[atTop] fun t ↦ rexp (-p * t)
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.Bounds

Goal state before:
pp: a : UnitAddCircle
⊢ ∃ p, 0 < p ∧ F_int 1 a =O[atTop] fun t ↦ rexp (-p * t)

Tactic:
obtain ⟨a, ha, rfl⟩ := a.eq_coe_Ico

Goal state after:
a : ℝ
ha : a ∈ Ico 0 1
⊢ ∃ p, 0 < p ∧ F_int 1 ↑a =O[atTop] fun t ↦ rexp (-p * t)
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.TwoVariable

Goal state before:
pp: z τ : ℂ
hτ : 0 < τ.im
⊢ ContinuousAt (fun p ↦ jacobiTheta₂' p.1 p.2) (z, τ)

Tactic:
by
  obtain ⟨T, hT, hτ'⟩ := exists_between hτ
  obtain ⟨S, hz⟩ := exists_gt |im z|
  let V := {u | |im u| < S} ×ˢ {v | T < im v}
  have hVo : IsOpen V := ((_root_.continuous_abs.comp continuous_im).isOpen_preimage _
    isOpen_Iio).prod (continuous_im.isOpen_preimage _ isOpen_Ioi)
  refine ContinuousOn.continuousAt ?_ (hVo.mem_nhds ⟨hz, hτ'⟩)
  let u (n : ℤ) : ℝ := 2 * π * |n| * rexp (-π * (T * n ^ 2 - 2 * S * |n|))
  have hu : Summable u := by simpa only [u, mul_assoc, pow_one]
      using (summable_pow_mul_jacobiTheta₂_term_bound S hT 1).mul_left (2 * π)
  refine continuousOn_tsum (fun n ↦ ?_) hu (fun n ⟨z', τ'⟩ ⟨hz', hτ'⟩ ↦ ?_)
  · apply Continuous.continuousOn
    unfold jacobiTheta₂'_term jacobiTheta₂_term
    fun_prop
  · exact norm_jacobiTheta₂'_term_le hT (le_of_lt hz') (le_of_lt hτ') n

Goal state after:
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.TwoVariable

Goal state before:
pp: z τ : ℂ
hτ : 0 < τ.im
n : ℤ
⊢ jacobiTheta₂'_term n (z + τ) τ =
    cexp (-↑π * I * (τ + 2 * z)) * (jacobiTheta₂'_term (n + 1) z τ - 2 * ↑π * I * jacobiTheta₂_term (n + 1) z τ)

Tactic:
simp only [jacobiTheta₂'_term, jacobiTheta₂_term]

Goal state after:
z τ : ℂ
hτ : 0 < τ.im
n : ℤ
⊢ 2 * ↑π * I * ↑n * cexp (2 * ↑π * I * ↑n * (z + τ) + ↑π * I * ↑n ^ 2 * τ) =
    cexp (-↑π * I * (τ + 2 * z)) *
      (2 * ↑π * I * ↑(n + 1) * cexp (2 * ↑π * I * ↑(n + 1) * z + ↑π * I * ↑(n + 1) ^ 2 * τ) -
        2 * ↑π * I * cexp (2 * ↑π * I * ↑(n + 1) * z + ↑π * I * ↑(n + 1) ^ 2 * τ))
Module: Mathlib.NumberTheory.ModularForms.JacobiTheta.TwoVariable

Goal state before:
pp: case e_f
z τ : ℂ
n : ℤ
⊢ jacobiTheta₂'_term ((Equiv.neg ℤ) n) (-z) τ = -jacobiTheta₂'_term n z τ

Tactic:
simp only [jacobiTheta₂'_term, jacobiTheta₂_term]

Goal state after:
case e_f
z τ : ℂ
n : ℤ
⊢ 2 * ↑π * I * ↑((Equiv.neg ℤ) n) * cexp (2 * ↑π * I * ↑((Equiv.neg ℤ) n) * -z + ↑π * I * ↑((Equiv.neg ℤ) n) ^ 2 * τ) =
    -(2 * ↑π * I * ↑n * cexp (2 * ↑π * I * ↑n * z + ↑π * I * ↑n ^ 2 * τ))
Module: Mathlib.NumberTheory.LSeries.HurwitzZetaOdd

Goal state before:
pp: case inr.H
x : ℝ
hx : 0 < x
a : ℝ
h1 : -1 / (I * ↑(1 / x)) = I * ↑x
⊢ oddKernel (↑a) x = 1 / x ^ (3 / 2) * sinKernel (↑a) (1 / x)

Tactic:
have h2 : (-I * (I * ↑(1 / x))) = 1 / x := by
    rw [← mul_assoc, neg_mul, I_mul_I, neg_neg, one_mul, ofReal_div, ofReal_one]

Goal state after:
case inr.H
x : ℝ
hx : 0 < x
a : ℝ
h1 : -1 / (I * ↑(1 / x)) = I * ↑x
h2 : -I * (I * ↑(1 / x)) = 1 / ↑x
⊢ oddKernel (↑a) x = 1 / x ^ (3 / 2) * sinKernel (↑a) (1 / x)
Module: Mathlib.NumberTheory.LSeries.RiemannZeta

Goal state before:
pp: case refine_2
⊢ (fun s ↦ (s - 1) * riemannZeta s) =ᶠ[𝓝[{s | 1 < s.re}] 1] fun s ↦ (s - 1) * ∑' (n : ℕ), 1 / ↑n ^ s

Tactic:
filter_upwards [eventually_mem_nhdsWithin] with s hs using
      congr_arg _ <| zeta_eq_tsum_one_div_nat_cpow hs

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

Goal state before:
pp: R : Type u_1
inst✝¹ : Semiring R
inst✝ : NoZeroDivisors R
m n : ℕ
hmn : m ∣ n
hm : FermatLastTheoremWith R m
⊢ FermatLastTheoremWith R n

Tactic:
by
  rintro a b c ha hb hc
  obtain ⟨k, rfl⟩ := hmn
  simp_rw [pow_mul']
  refine hm _ _ _ ?_ ?_ ?_ <;> exact pow_ne_zero _ ‹_›

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

Goal state before:
pp: case inr.e_a.e_a.e_a
a : ℝ
s : ℂ
hs : 1 < s.re
this :
  HasSum
    (fun n ↦
      ((s + 1).Gammaℝ * -I * ↑(↑n).sign * cexp (2 * ↑π * I * ↑a * ↑n) +
            (s + 1).Gammaℝ * -I * -↑(↑n).sign * cexp (2 * ↑π * I * ↑a * -↑n)) /
          ↑n ^ s /
        2)
    (completedSinZeta (↑a) s)
n : ℕ
h : n ≠ 0
⊢ (cexp (-(2 * ↑π * ↑a * ↑n) * I) - cexp (2 * ↑π * ↑a * ↑n * I)) * I =
    -I * cexp (2 * ↑π * I * ↑a * ↑n) + I * cexp (2 * ↑π * I * ↑a * -↑n)

Tactic:
neg_mul I,

Goal state after:
case inr.e_a.e_a.e_a
a : ℝ
s : ℂ
hs : 1 < s.re
this :
  HasSum
    (fun n ↦
      ((s + 1).Gammaℝ * -I * ↑(↑n).sign * cexp (2 * ↑π * I * ↑a * ↑n) +
            (s + 1).Gammaℝ * -I * -↑(↑n).sign * cexp (2 * ↑π * I * ↑a * -↑n)) /
          ↑n ^ s /
        2)
    (completedSinZeta (↑a) s)
n : ℕ
h : n ≠ 0
⊢ (cexp (-(2 * ↑π * ↑a * ↑n) * I) - cexp (2 * ↑π * ↑a * ↑n * I)) * I =
    -(I * cexp (2 * ↑π * I * ↑a * ↑n)) + I * cexp (2 * ↑π * I * ↑a * -↑n)
Module: Mathlib.NumberTheory.FLT.Four

Goal state before:
pp: a b c : ℤ
h : Minimal a b c
ha2 : a % 2 = 1
hc : 0 < c
ht : PythagoreanTriple (a ^ 2) (b ^ 2) c
h2 : (a ^ 2).gcd (b ^ 2) = 1
ha22 : a ^ 2 % 2 = 1
m n : ℤ
ht1 : a ^ 2 = m ^ 2 - n ^ 2
ht2 : b ^ 2 = 2 * m * n
ht3 : c = m ^ 2 + n ^ 2
ht4 : m.gcd n = 1
ht5 : m % 2 = 0 ∧ n % 2 = 1 ∨ m % 2 = 1 ∧ n % 2 = 0
ht6 : 0 ≤ m
htt : PythagoreanTriple a n m
h3 : a.gcd n = 1
hb20 : b ^ 2 ≠ 0
h4 : 0 < m
⊢ False

Tactic:
obtain ⟨r, s, _, htt2, htt3, htt4, htt5, htt6⟩ := htt.coprime_classification' h3 ha2 h4

Goal state after:
a b c : ℤ
h : Minimal a b c
ha2 : a % 2 = 1
hc : 0 < c
ht : PythagoreanTriple (a ^ 2) (b ^ 2) c
h2 : (a ^ 2).gcd (b ^ 2) = 1
ha22 : a ^ 2 % 2 = 1
m n : ℤ
ht1 : a ^ 2 = m ^ 2 - n ^ 2
ht2 : b ^ 2 = 2 * m * n
ht3 : c = m ^ 2 + n ^ 2
ht4 : m.gcd n = 1
ht5 : m % 2 = 0 ∧ n % 2 = 1 ∨ m % 2 = 1 ∧ n % 2 = 0
ht6 : 0 ≤ m
htt : PythagoreanTriple a n m
h3 : a.gcd n = 1
hb20 : b ^ 2 ≠ 0
h4 : 0 < m
r s : ℤ
left✝ : a = r ^ 2 - s ^ 2
htt2 : n = 2 * r * s
htt3 : m = r ^ 2 + s ^ 2
htt4 : r.gcd s = 1
htt5 : r % 2 = 0 ∧ s % 2 = 1 ∨ r % 2 = 1 ∧ s % 2 = 0
htt6 : 0 ≤ r
⊢ False
Module: Mathlib.NumberTheory.PythagoreanTriples

Goal state before:
pp: case pos
m n : ℤ
h : m.gcd n = 1
hm : m % 2 = 0
hn : n % 2 = 1
H : ¬(m ^ 2 - n ^ 2).gcd (m ^ 2 + n ^ 2) = 1
p : ℕ
hp : Nat.Prime p
hp1 : ↑p ∣ m ^ 2 - n ^ 2
hp2 : ↑p ∣ m ^ 2 + n ^ 2
h2m : ↑p ∣ 2 * m ^ 2
h2n : ↑p ∣ 2 * n ^ 2
hmc : p = 2 ∨ p ∣ m.natAbs
hnc : p = 2 ∨ p ∣ n.natAbs
h2 : p = 2
h3 : (m ^ 2 + n ^ 2) % 2 = 1
⊢ False

Tactic:
have h4 : (m ^ 2 + n ^ 2) % 2 = 0 := by
      apply Int.emod_eq_zero_of_dvd
      rwa [h2] at hp2

Goal state after:
case pos
m n : ℤ
h : m.gcd n = 1
hm : m % 2 = 0
hn : n % 2 = 1
H : ¬(m ^ 2 - n ^ 2).gcd (m ^ 2 + n ^ 2) = 1
p : ℕ
hp : Nat.Prime p
hp1 : ↑p ∣ m ^ 2 - n ^ 2
hp2 : ↑p ∣ m ^ 2 + n ^ 2
h2m : ↑p ∣ 2 * m ^ 2
h2n : ↑p ∣ 2 * n ^ 2
hmc : p = 2 ∨ p ∣ m.natAbs
hnc : p = 2 ∨ p ∣ n.natAbs
h2 : p = 2
h3 : (m ^ 2 + n ^ 2) % 2 = 1
h4 : (m ^ 2 + n ^ 2) % 2 = 0
⊢ False
Module: Mathlib.RingTheory.Radical.Basic

Goal state before:
pp: case inr
M : Type u_1
inst✝² : CommMonoidWithZero M
inst✝¹ : NormalizationMonoid M
inst✝ : UniqueFactorizationMonoid M
a : M
ha₀ : a ≠ 0
x y : M
hxy : x ≠ y
hx : Irreducible x ∧ normalize x = x ∧ x ∣ a
hy : Irreducible y ∧ normalize y = y ∧ y ∣ a
⊢ IsRelPrime x y

Tactic:
rw [hx.1.isRelPrime_iff_not_dvd]

Goal state after:
case inr
M : Type u_1
inst✝² : CommMonoidWithZero M
inst✝¹ : NormalizationMonoid M
inst✝ : UniqueFactorizationMonoid M
a : M
ha₀ : a ≠ 0
x y : M
hxy : x ≠ y
hx : Irreducible x ∧ normalize x = x ∧ x ∣ a
hy : Irreducible y ∧ normalize y = y ∧ y ∣ a
⊢ ¬x ∣ y
Module: Mathlib.NumberTheory.PythagoreanTriples

Goal state before:
pp: case inr
m n : ℤ
h : m.gcd n = 1
h2 : m % 2 = 1 ∧ n % 2 = 0
⊢ (m ^ 2 - n ^ 2).gcd (2 * m * n) = 1

Tactic:
exact coprime_sq_sub_mul_of_odd_even h h2.left h2.right

Goal state after:
Module: Mathlib.NumberTheory.FLT.Four

Goal state before:
pp: a b c : ℤ
h : Minimal a b c
ha2 : a % 2 = 1
hc : 0 < c
ht : PythagoreanTriple (a ^ 2) (b ^ 2) c
h2 : (a ^ 2).gcd (b ^ 2) = 1
ha22 : a ^ 2 % 2 = 1
m n : ℤ
ht1 : a ^ 2 = m ^ 2 - n ^ 2
ht2 : b ^ 2 = 2 * m * n
ht3 : c = m ^ 2 + n ^ 2
ht4 : m.gcd n = 1
ht5 : m % 2 = 0 ∧ n % 2 = 1 ∨ m % 2 = 1 ∧ n % 2 = 0
ht6 : 0 ≤ m
htt : PythagoreanTriple a n m
h3 : a.gcd n = 1
hb20 : b ^ 2 ≠ 0
h4 : 0 < m
r s : ℤ
left✝ : a = r ^ 2 - s ^ 2
htt2 : n = 2 * r * s
htt3 : m = r ^ 2 + s ^ 2
htt4 : s.gcd r = 1
htt5 : r % 2 = 0 ∧ s % 2 = 1 ∨ r % 2 = 1 ∧ s % 2 = 0
htt6 : 0 ≤ r
hcp : (r * s).gcd m = 1
b' : ℤ
hb2' : b = 2 * b'
hs : b' ^ 2 = r * s * m
hrsz : r * s ≠ 0
h2b0 : b' ≠ 0
i : ℤ
hi' : ¬m = -i ^ 2
hi : m = i ^ 2
d : ℤ
hd' : ¬r * s = -d ^ 2
hd : s * r = d ^ 2
j : ℤ
hj : r = j ^ 2 ∨ r = -j ^ 2
hj0 : j ≠ 0
k : ℤ
hk : s = k ^ 2 ∨ s = -k ^ 2
hk0 : k ≠ 0
hj2 : r ^ 2 = j ^ 4
hk2 : s ^ 2 = k ^ 4
hh : i ^ 2 = j ^ 4 + k ^ 4
hn : n ≠ 0
⊢ m ^ 2 < m ^ 2 + n ^ 2

Tactic:
exact lt_add_of_pos_right (m ^ 2) (sq_pos_of_ne_zero hn)

Goal state after:
Module: Mathlib.NumberTheory.FLT.Polynomial

Goal state before:
pp: k : Type u_1
inst✝ : Field k
p q r : ℕ
a b c : k[X]
u v w : k
hp : p ≠ 0
hq : q ≠ 0
hr : r ≠ 0
hu : u ≠ 0
hv : v ≠ 0
hw : w ≠ 0
heq : -(C u * a ^ p + C v * b ^ q) = C w * c ^ r
hab : IsCoprime (C u * a ^ p) (C v * b ^ q)
hCu : IsUnit (C u)
hCv : IsUnit (C v)
hCw : IsUnit (C w)
⊢ IsCoprime b c

Tactic:
rw [← IsCoprime.pow_iff hq.bot_lt hr.bot_lt, ← isCoprime_mul_units_left hCv hCw,
    ← heq, IsCoprime.neg_right_iff]

Goal state after:
k : Type u_1
inst✝ : Field k
p q r : ℕ
a b c : k[X]
u v w : k
hp : p ≠ 0
hq : q ≠ 0
hr : r ≠ 0
hu : u ≠ 0
hv : v ≠ 0
hw : w ≠ 0
heq : -(C u * a ^ p + C v * b ^ q) = C w * c ^ r
hab : IsCoprime (C u * a ^ p) (C v * b ^ q)
hCu : IsUnit (C u)
hCv : IsUnit (C v)
hCw : IsUnit (C w)
⊢ IsCoprime (C v * b ^ q) (C u * a ^ p + C v * b ^ q)