mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.CategoryTheory.EffectiveEpi.Comp

Goal state before:
pp: C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
α : Type u_2
B : C
X Y : α → C
f : (a : α) → X a ⟶ B
g : (a : α) → Y a ⟶ X a
i : (a : α) → X a ⟶ Y a
hi : ∀ (a : α), i a ≫ g a = 𝟙 (X a)
inst✝ : EffectiveEpiFamily X f
W✝ : C
x✝² : (a : α) → Y a ⟶ W✝
x✝¹ :
  ∀ {Z : C} (a₁ a₂ : α) (g₁ : Z ⟶ Y a₁) (g₂ : Z ⟶ Y a₂), g₁ ≫ g a₁ ≫ f a₁ = g₂ ≫ g a₂ ≫ f a₂ → g₁ ≫ x✝² a₁ = g₂ ≫ x✝² a₂
x✝ : B ⟶ W✝
hm : ∀ (a : α), (g a ≫ f a) ≫ x✝ = x✝² a
a : α
⊢ f a ≫ x✝ = ((i a ≫ g a) ≫ f a) ≫ x✝

Tactic:
hi,

Goal state after:
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
α : Type u_2
B : C
X Y : α → C
f : (a : α) → X a ⟶ B
g : (a : α) → Y a ⟶ X a
i : (a : α) → X a ⟶ Y a
hi : ∀ (a : α), i a ≫ g a = 𝟙 (X a)
inst✝ : EffectiveEpiFamily X f
W✝ : C
x✝² : (a : α) → Y a ⟶ W✝
x✝¹ :
  ∀ {Z : C} (a₁ a₂ : α) (g₁ : Z ⟶ Y a₁) (g₂ : Z ⟶ Y a₂), g₁ ≫ g a₁ ≫ f a₁ = g₂ ≫ g a₂ ≫ f a₂ → g₁ ≫ x✝² a₁ = g₂ ≫ x✝² a₂
x✝ : B ⟶ W✝
hm : ∀ (a : α), (g a ≫ f a) ≫ x✝ = x✝² a
a : α
⊢ f a ≫ x✝ = (𝟙 (X a) ≫ f a) ≫ x✝
Module: Mathlib.AlgebraicGeometry.ColimitsOver

Goal state before:
pp: P : MorphismProperty Scheme
inst✝⁸ : P.IsStableUnderBaseChange
inst✝⁷ : P.IsMultiplicative
S : Scheme
J : Type u_1
inst✝⁶ : Category.{v_1, u_1} J
D : J ⥤ P.Over ⊤ S
𝒰 : S.OpenCover
inst✝⁵ : Category.{v_2, ?u.71} 𝒰.I₀
inst✝⁴ : LocallyDirected 𝒰
d : ColimitGluingData D 𝒰
inst✝³ :
  ∀ {i j : 𝒰.I₀} (hij : i ⟶ j), PreservesColimitsOfShape J (MorphismProperty.Over.pullback P ⊤ (Cover.trans 𝒰 hij))
inst✝² : Quiver.IsThin 𝒰.I₀
inst✝¹ : Small.{u, ?u.71} 𝒰.I₀
inst✝ : IsZariskiLocalAtTarget P
⊢ Cocone D

Tactic:
by
  letI 𝒱 (a : J) : (D.obj a).left.OpenCover := 𝒰.pullback₁ (D.obj a).hom
  refine { pt := d.glued, ι.app a := ?_, ι.naturality {a b} f := ?_ }
  · refine ⟨(𝒱 a).glueMorphismsOverOfLocallyDirected ?_ ?_ ?_, trivial, trivial⟩
    · intro i
      exact ((d.cocone i).ι.app a).left ≫ colimit.ι d.relativeGluingData.functor i
    · intro i j hij
      conv_rhs => rw [← colimit.w d.relativeGluingData.functor hij]
      simp only [← Category.assoc]
      congr 1
      exact congr($(d.cocone_ι_transitionMap hij a).left).symm
    · intro
      simp [𝒱, pullback.condition, glued]
  · ext
    apply (𝒱 a).hom_ext
    intro i
    have : (𝒱 a).f i ≫ (D.map f).left =
        ((D ⋙ Over.pullback _ _ (𝒰.f i)).map f).left ≫ (𝒱 b).f i := by
      simp [𝒱]
    dsimp
    rw [Category.comp_id, Scheme.OpenCover.map_glueMorphismsOverOfLocallyDirected_left,
      reassoc_of% this, Scheme.OpenCover.map_glueMorphismsOverOfLocallyDirected_left,
      ← Over.comp_left_assoc, ← Comma.comp_hom, ← Functor.comp_map, Cocone.w]

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Affine.Basic

Goal state before:
pp: R : Type r
inst✝ : CommRing R
W : Affine R
x y : R
hΔ : Δ W ≠ 0
⊢ W.Equation x y ↔ W.Nonsingular x y

Tactic:
rw [equation_iff_variableChange, nonsingular_iff_variableChange,
    equation_zero_iff_nonsingular_zero_of_Δ_ne_zero <| by
      rwa [variableChange_Δ, inv_one, Units.val_one, one_pow, one_mul]]

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Affine.Formula

Goal state before:
pp: R : Type r
inst✝ : CommRing R
W' : Affine R
⊢ Y - W'.negPolynomial = W'.polynomialY

Tactic:
rw [← Y_sub_polynomialY, sub_sub_cancel]

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.VariableChange

Goal state before:
pp: R : Type u
inst✝¹ : CommRing R
W : WeierstrassCurve R
C : VariableChange R
inst✝ : W.IsElliptic
⊢ ↑C.u ^ 12 * ↑C.u⁻¹ ^ (4 * 3) * ↑W.Δ'⁻¹ * W.c₄ ^ 3 = ↑W.Δ'⁻¹ * W.c₄ ^ 3

Tactic:
← mul_pow,

Goal state after:
R : Type u
inst✝¹ : CommRing R
W : WeierstrassCurve R
C : VariableChange R
inst✝ : W.IsElliptic
⊢ (↑C.u * ↑C.u⁻¹) ^ 12 * ↑W.Δ'⁻¹ * W.c₄ ^ 3 = ↑W.Δ'⁻¹ * W.c₄ ^ 3
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Affine.Formula

Goal state before:
pp: F : Type u
K : Type v
inst✝³ : Field F
inst✝² : Field K
W : Affine F
inst✝¹ : DecidableEq F
inst✝ : DecidableEq K
f : F →+* K
x₁ x₂ y₁ y₂ : F
hx : x₁ = x₂
hy : y₁ = W.negY x₂ y₂
⊢ f (W.negY x₂ y₂) = (W.map f).negY (f x₂) (f y₂)

Tactic:
map_negY

Goal state after:
F : Type u
K : Type v
inst✝³ : Field F
inst✝² : Field K
W : Affine F
inst✝¹ : DecidableEq F
inst✝ : DecidableEq K
f : F →+* K
x₁ x₂ y₁ y₂ : F
hx : x₁ = x₂
hy : y₁ = W.negY x₂ y₂
⊢ f (W.negY x₂ y₂) = f (W.negY x₂ y₂)
Module: Mathlib.NumberTheory.EllipticDivisibilitySequence

Goal state before:
pp: R : Type u_1
inst✝ : CommRing R
W : ℤ → R
a b c d : ℤ
parity : d % 2 = a % 2 ∧ d % 2 = b % 2 ∧ d % 2 = c % 2
⊢ atomRel W ((a + b + c + d) / 2 - d) ((a + b + c + d) / 2 - c) ((a + b + c + d) / 2 - b) ((a + b + c + d) / 2 - a) =
    atomRel W a b c d

Tactic:
add_assoc <| a + b,

Goal state after:
R : Type u_1
inst✝ : CommRing R
W : ℤ → R
a b c d : ℤ
parity : d % 2 = a % 2 ∧ d % 2 = b % 2 ∧ d % 2 = c % 2
⊢ atomRel W ((a + b + (c + d)) / 2 - d) ((a + b + (c + d)) / 2 - c) ((a + b + (c + d)) / 2 - b)
      ((a + b + (c + d)) / 2 - a) =
    atomRel W a b c d
Module: Mathlib.AlgebraicGeometry.EllipticCurve.IsomOfJ

Goal state before:
pp: F : Type u_1
inst✝⁶ : Field F
inst✝⁵ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝⁴ : E.IsElliptic
inst✝³ : E'.IsElliptic
inst✝² : CharP F 2
inst✝¹ : E.IsCharTwoJEqZeroNF
inst✝ : E'.IsCharTwoJEqZeroNF
ha₃ : E.a₃ ≠ 0
ha₃' : E'.a₃ ≠ 0
⊢ 3 ≠ 0

Tactic:
show (3 : F) = 1 by linear_combination CharP.cast_eq_zero F 2

Goal state after:
F : Type u_1
inst✝⁶ : Field F
inst✝⁵ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝⁴ : E.IsElliptic
inst✝³ : E'.IsElliptic
inst✝² : CharP F 2
inst✝¹ : E.IsCharTwoJEqZeroNF
inst✝ : E'.IsCharTwoJEqZeroNF
ha₃ : E.a₃ ≠ 0
ha₃' : E'.a₃ ≠ 0
⊢ 1 ≠ 0
Module: Mathlib.AlgebraicGeometry.EllipticCurve.IsomOfJ

Goal state before:
pp: case h.a₂
F : Type u_1
inst✝⁶ : Field F
inst✝⁵ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝⁴ : E.IsElliptic
inst✝³ : E'.IsElliptic
inst✝² : CharP F 2
inst✝¹ : E.IsCharTwoJEqZeroNF
inst✝ : E'.IsCharTwoJEqZeroNF
ha₃ : E.a₃ ≠ 0
ha₃' : E'.a₃ ≠ 0
this : NeZero 3
u : F
hu : u ^ 3 = E.a₃ / E'.a₃
s : F
hs : 1 * s ^ 4 + E.a₃ * s + (E.a₄ - u ^ 4 * E'.a₄) = 0
t : F
ht : 1 * t ^ 2 + E.a₃ * t + (s ^ 6 + E.a₄ * s ^ 2 + E.a₆ - u ^ 6 * E'.a₆) = 0
hu0 : u ≠ 0
⊢ ↑(Units.mk0 u hu0)⁻¹ ^ 2 * (0 - s * 0 + 3 * s ^ 2 - s ^ 2) = 0

Tactic:
show (3 : F) = 1 by linear_combination CharP.cast_eq_zero F 2

Goal state after:
case h.a₂
F : Type u_1
inst✝⁶ : Field F
inst✝⁵ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝⁴ : E.IsElliptic
inst✝³ : E'.IsElliptic
inst✝² : CharP F 2
inst✝¹ : E.IsCharTwoJEqZeroNF
inst✝ : E'.IsCharTwoJEqZeroNF
ha₃ : E.a₃ ≠ 0
ha₃' : E'.a₃ ≠ 0
this : NeZero 3
u : F
hu : u ^ 3 = E.a₃ / E'.a₃
s : F
hs : 1 * s ^ 4 + E.a₃ * s + (E.a₄ - u ^ 4 * E'.a₄) = 0
t : F
ht : 1 * t ^ 2 + E.a₃ * t + (s ^ 6 + E.a₄ * s ^ 2 + E.a₆ - u ^ 6 * E'.a₆) = 0
hu0 : u ≠ 0
⊢ ↑(Units.mk0 u hu0)⁻¹ ^ 2 * (0 - s * 0 + 1 * s ^ 2 - s ^ 2) = 0
Module: Mathlib.AlgebraicGeometry.EllipticCurve.DivisionPolynomial.Degree

Goal state before:
pp: case even.left
R : Type u
inst✝ : CommRing R
W : WeierstrassCurve R
dm : ∀ {m n : ℕ} {p q : R[X]}, p.natDegree ≤ m → q.natDegree ≤ n → (p * q).natDegree ≤ m + n := ⋯
dp : ∀ {m n : ℕ} {p : R[X]}, p.natDegree ≤ m → (p ^ n).natDegree ≤ n * m := ⋯
cm : ∀ {m n : ℕ} {p q : R[X]}, p.natDegree ≤ m → q.natDegree ≤ n → (p * q).coeff (m + n) = p.coeff m * q.coeff n := ⋯
cp : ∀ {m n : ℕ} {p : R[X]}, p.natDegree ≤ n → (p ^ m).coeff (m * n) = p.coeff n ^ m := ⋯
m : ℕ
h₁ : (W.preΨ' (m + 1)).natDegree ≤ expDegree (m + 1) ∧ (W.preΨ' (m + 1)).coeff (expDegree (m + 1)) = ↑(expCoeff (m + 1))
h₂ : (W.preΨ' (m + 2)).natDegree ≤ expDegree (m + 2) ∧ (W.preΨ' (m + 2)).coeff (expDegree (m + 2)) = ↑(expCoeff (m + 2))
h₃ : (W.preΨ' (m + 3)).natDegree ≤ expDegree (m + 3) ∧ (W.preΨ' (m + 3)).coeff (expDegree (m + 3)) = ↑(expCoeff (m + 3))
h₄ : (W.preΨ' (m + 4)).natDegree ≤ expDegree (m + 4) ∧ (W.preΨ' (m + 4)).coeff (expDegree (m + 4)) = ↑(expCoeff (m + 4))
h₅ : (W.preΨ' (m + 5)).natDegree ≤ expDegree (m + 5) ∧ (W.preΨ' (m + 5)).coeff (expDegree (m + 5)) = ↑(expCoeff (m + 5))
⊢ (W.preΨ' (2 * (m + 3))).natDegree ≤ expDegree (2 * (m + 3))

Tactic:
nth_rw 1 [preΨ'_even, ← max_self <| expDegree _, (expDegree_rec m).1.1, (expDegree_rec m).1.2]

Goal state after:
case even.left
R : Type u
inst✝ : CommRing R
W : WeierstrassCurve R
dm : ∀ {m n : ℕ} {p q : R[X]}, p.natDegree ≤ m → q.natDegree ≤ n → (p * q).natDegree ≤ m + n :=
  fun {m n} {p q} ↦ natDegree_mul_le_of_le
dp : ∀ {m n : ℕ} {p : R[X]}, p.natDegree ≤ m → (p ^ n).natDegree ≤ n * m := fun {m n} {p} ↦ natDegree_pow_le_of_le n
cm : ∀ {m n : ℕ} {p q : R[X]}, p.natDegree ≤ m → q.natDegree ≤ n → (p * q).coeff (m + n) = p.coeff m * q.coeff n :=
  fun {m n} {p q} ↦ coeff_mul_add_eq_of_natDegree_le
cp : ∀ {m n : ℕ} {p : R[X]}, p.natDegree ≤ n → (p ^ m).coeff (m * n) = p.coeff n ^ m :=
  fun {m n} {p} ↦ coeff_pow_of_natDegree_le
m : ℕ
h₁ : (W.preΨ' (m + 1)).natDegree ≤ expDegree (m + 1) ∧ (W.preΨ' (m + 1)).coeff (expDegree (m + 1)) = ↑(expCoeff (m + 1))
h₂ : (W.preΨ' (m + 2)).natDegree ≤ expDegree (m + 2) ∧ (W.preΨ' (m + 2)).coeff (expDegree (m + 2)) = ↑(expCoeff (m + 2))
h₃ : (W.preΨ' (m + 3)).natDegree ≤ expDegree (m + 3) ∧ (W.preΨ' (m + 3)).coeff (expDegree (m + 3)) = ↑(expCoeff (m + 3))
h₄ : (W.preΨ' (m + 4)).natDegree ≤ expDegree (m + 4) ∧ (W.preΨ' (m + 4)).coeff (expDegree (m + 4)) = ↑(expCoeff (m + 4))
h₅ : (W.preΨ' (m + 5)).natDegree ≤ expDegree (m + 5) ∧ (W.preΨ' (m + 5)).coeff (expDegree (m + 5)) = ↑(expCoeff (m + 5))
⊢ (W.preΨ' (m + 2) ^ 2 * W.preΨ' (m + 3) * W.preΨ' (m + 5) -
        W.preΨ' (m + 1) * W.preΨ' (m + 3) * W.preΨ' (m + 4) ^ 2).natDegree ≤
    max (2 * expDegree (m + 2) + expDegree (m + 3) + expDegree (m + 5))
      (expDegree (m + 1) + expDegree (m + 3) + 2 * expDegree (m + 4))
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Basic

Goal state before:
pp: F : Type u
inst✝ : Field F
P Q : Fin 3 → F
hPz : P z ≠ 0
hQz : Q z ≠ 0
hx : P x * Q z ^ 2 = Q x * P z ^ 2
hy : P y * Q z ^ 3 = Q y * P z ^ 3
⊢ P ≈ Q

Tactic:
by
  use Units.mk0 _ hPz / Units.mk0 _ hQz
  simp only [Units.smul_def, smul_fin3, Units.val_div_eq_div_val, Units.val_mk0, div_pow, mul_comm,
    mul_div, ← hx, ← hy, mul_div_cancel_right₀ _ <| pow_ne_zero _ hQz, mul_div_cancel_right₀ _ hQz,
    fin3_def]

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.IsomOfJ

Goal state before:
pp: case inr
F : Type u_1
inst✝⁴ : Field F
inst✝³ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝² : E.IsElliptic
inst✝¹ : E'.IsElliptic
p : ℕ
inst✝ : CharP F p
heq : E.j = E'.j
hchar2 : 2 ≠ 0
hchar3 : 3 ≠ 0
this✝⁴ : NeZero 2
this✝³ : NeZero 4
this✝² : NeZero 6
this✝¹ : Invertible 2 := invertibleOfNonzero hchar2
this✝ : Invertible 3 := invertibleOfNonzero hchar3
this : ∀ (E : WeierstrassCurve F) [inst : E.IsElliptic], E.j = E'.j → E.IsShortNF → ∃ C, C • E = E'
h✝ : ¬E.IsShortNF
⊢ ∃ C, C • E = E'

Tactic:
obtain ⟨C, hE⟩ := E.exists_variableChange_isShortNF

Goal state after:
case inr
F : Type u_1
inst✝⁴ : Field F
inst✝³ : IsSepClosed F
E E' : WeierstrassCurve F
inst✝² : E.IsElliptic
inst✝¹ : E'.IsElliptic
p : ℕ
inst✝ : CharP F p
heq : E.j = E'.j
hchar2 : 2 ≠ 0
hchar3 : 3 ≠ 0
this✝⁴ : NeZero 2
this✝³ : NeZero 4
this✝² : NeZero 6
this✝¹ : Invertible 2 := invertibleOfNonzero hchar2
this✝ : Invertible 3 := invertibleOfNonzero hchar3
this : ∀ (E : WeierstrassCurve F) [inst : E.IsElliptic], E.j = E'.j → E.IsShortNF → ∃ C, C • E = E'
h✝ : ¬E.IsShortNF
C : VariableChange F
hE : (C • E).IsShortNF
⊢ ∃ C, C • E = E'
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Basic

Goal state before:
pp: case a
F : Type u
inst✝ : Field F
W : Jacobian F
P : Fin 3 → F
hPz : P z ≠ 0
⊢ (eval P) W.polynomialY / P z ^ 3 + (W.a₁ * P x / P z ^ 2 * 1 + W.a₃ * 1) -
      (Polynomial.evalEval (P x / P z ^ 2) (P y / P z ^ 3) W.toAffine.polynomialY +
        (W.a₁ * P x / P z ^ 2 * (P z / P z) + W.a₃ * (P z ^ 3 / P z ^ 3))) =
    0

Tactic:
rw [eval_polynomialY, Affine.evalEval_polynomialY]

Goal state after:
case a
F : Type u
inst✝ : Field F
W : Jacobian F
P : Fin 3 → F
hPz : P z ≠ 0
⊢ (2 * P y + W.a₁ * P x * P z + W.a₃ * P z ^ 3) / P z ^ 3 + (W.a₁ * P x / P z ^ 2 * 1 + W.a₃ * 1) -
      (2 * (P y / P z ^ 3) + W.toAffine.a₁ * (P x / P z ^ 2) + W.toAffine.a₃ +
        (W.a₁ * P x / P z ^ 2 * (P z / P z) + W.a₃ * (P z ^ 3 / P z ^ 3))) =
    0
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Formula

Goal state before:
pp: F : Type u
inst✝ : Field F
W : Jacobian F
P : Fin 3 → F
hPz : P z ≠ 0
n d : F
hd : d ≠ 0
⊢ W.toAffine.negAddY (P x / P z ^ 2) (P x / P z ^ 2) (P y / P z ^ 3) (-n / (P z * d)) =
    (-n * (n ^ 2 - W.a₁ * n * P z * d - W.a₂ * P z ^ 2 * d ^ 2 - 2 * P x * d ^ 2 - P x * d ^ 2) + P y * d ^ 3) /
      (P z * d) ^ 3

Tactic:
rw [Affine.negAddY, toAffine_addX_of_eq hPz hd]

Goal state after:
F : Type u
inst✝ : Field F
W : Jacobian F
P : Fin 3 → F
hPz : P z ≠ 0
n d : F
hd : d ≠ 0
⊢ -n / (P z * d) *
        ((n ^ 2 - W.a₁ * n * P z * d - W.a₂ * P z ^ 2 * d ^ 2 - 2 * P x * d ^ 2) / (P z * d) ^ 2 - P x / P z ^ 2) +
      P y / P z ^ 3 =
    (-n * (n ^ 2 - W.a₁ * n * P z * d - W.a₂ * P z ^ 2 * d ^ 2 - 2 * P x * d ^ 2 - P x * d ^ 2) + P y * d ^ 3) /
      (P z * d) ^ 3
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Point

Goal state before:
pp: R : Type r
inst✝ : CommRing R
W' : Jacobian R
P Q : Fin 3 → R
u v : R
hu : IsUnit u
hv : IsUnit v
h : P ≈ Q
⊢ (fun m ↦ m • W'.add P Q) (hu.unit ^ 4) = W'.add (u • P) (v • Q)

Tactic:
convert! (add_smul_of_equiv h hu hv).symm

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Point

Goal state before:
pp: case pos
F : Type u
inst✝¹ : Field F
W : Jacobian F
inst✝ : DecidableEq F
P Q : Fin 3 → F
hP : W.Equation P
hQ : W.Equation Q
hPz : P z ≠ 0
hQz : Q z ≠ 0
hxy : ¬(P x * Q z ^ 2 = Q x * P z ^ 2 ∧ P y * Q z ^ 3 = W.negY Q * P z ^ 3)
hx : P x * Q z ^ 2 = Q x * P z ^ 2
⊢ W.addMap ⟦P⟧ ⟦Q⟧ =
    ⟦![W.toAffine.addX (P x / P z ^ 2) (Q x / Q z ^ 2)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        W.toAffine.addY (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        1]⟧

pp: case neg
F : Type u
inst✝¹ : Field F
W : Jacobian F
inst✝ : DecidableEq F
P Q : Fin 3 → F
hP : W.Equation P
hQ : W.Equation Q
hPz : P z ≠ 0
hQz : Q z ≠ 0
hxy : ¬(P x * Q z ^ 2 = Q x * P z ^ 2 ∧ P y * Q z ^ 3 = W.negY Q * P z ^ 3)
hx : ¬P x * Q z ^ 2 = Q x * P z ^ 2
⊢ W.addMap ⟦P⟧ ⟦Q⟧ =
    ⟦![W.toAffine.addX (P x / P z ^ 2) (Q x / Q z ^ 2)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        W.toAffine.addY (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        1]⟧

Tactic:
· rw [addMap_eq, add_of_Y_ne' hP hQ hPz hQz hx <| not_and.mp hxy hx,
      smul_eq _ <| isUnit_dblZ_of_Y_ne' hP hQ hPz hx <| not_and.mp hxy hx]

Goal state after:
case neg
F : Type u
inst✝¹ : Field F
W : Jacobian F
inst✝ : DecidableEq F
P Q : Fin 3 → F
hP : W.Equation P
hQ : W.Equation Q
hPz : P z ≠ 0
hQz : Q z ≠ 0
hxy : ¬(P x * Q z ^ 2 = Q x * P z ^ 2 ∧ P y * Q z ^ 3 = W.negY Q * P z ^ 3)
hx : ¬P x * Q z ^ 2 = Q x * P z ^ 2
⊢ W.addMap ⟦P⟧ ⟦Q⟧ =
    ⟦![W.toAffine.addX (P x / P z ^ 2) (Q x / Q z ^ 2)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        W.toAffine.addY (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3)
          (W.toAffine.slope (P x / P z ^ 2) (Q x / Q z ^ 2) (P y / P z ^ 3) (Q y / Q z ^ 3)),
        1]⟧
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Point

Goal state before:
pp: case zero
R : Type r
S : Type s
A F : Type u
B K : Type v
inst✝⁶ : CommRing R
inst✝⁵ : CommRing S
inst✝⁴ : CommRing A
inst✝³ : CommRing B
inst✝² : Field F
inst✝¹ : Field K
W' : Jacobian R
W : Jacobian F
inst✝ : DecidableEq F
⊢ toAffineLift 0 = 0

Tactic:
toAffineLift_zero

Goal state after:
case zero
R : Type r
S : Type s
A F : Type u
B K : Type v
inst✝⁶ : CommRing R
inst✝⁵ : CommRing S
inst✝⁴ : CommRing A
inst✝³ : CommRing B
inst✝² : Field F
inst✝¹ : Field K
W' : Jacobian R
W : Jacobian F
inst✝ : DecidableEq F
⊢ 0 = 0
Module: Mathlib.Topology.Algebra.Valued.ValuationTopology

Goal state before:
pp: R : Type u
inst✝¹ : Ring R
Γ₀ : Type v
inst✝ : LinearOrderedCommGroupWithZero Γ₀
_i : Valued R Γ₀
⊢ _i.toUniformSpace = IsTopologicalAddGroup.rightUniformSpace R

Tactic:
refine UniformSpace.ext ((hasBasis_uniformity R Γ₀).eq_of_same_basis ?_)

Goal state after:
R : Type u
inst✝¹ : Ring R
Γ₀ : Type v
inst✝ : LinearOrderedCommGroupWithZero Γ₀
_i : Valued R Γ₀
⊢ (uniformity R).HasBasis (fun x ↦ True) fun γ ↦ {p | v.restrict (p.2 - p.1) < ↑γ}
Module: Mathlib.Topology.Algebra.Valued.ValuationTopology

Goal state before:
pp: case h
R : Type u
inst✝¹ : Ring R
Γ₀ : Type v
inst✝ : LinearOrderedCommGroupWithZero Γ₀
_i : Valued R Γ₀
x : R
h : v x ≠ 0
h' : v.restrict x ≠ 0
y : R
⊢ y ∈ {y | v.restrict (y - x) < v.restrict x} → y ∈ {y | v y = v x}

Tactic:
y_in

Goal state after:
case h
R : Type u
inst✝¹ : Ring R
Γ₀ : Type v
inst✝ : LinearOrderedCommGroupWithZero Γ₀
_i : Valued R Γ₀
x : R
h : v x ≠ 0
h' : v.restrict x ≠ 0
y : R
y_in : y ∈ {y | v.restrict (y - x) < v.restrict x}
⊢ y ∈ {y | v y = v x}
Module: Mathlib.Topology.Algebra.ValuativeRel.ValuativeTopology

Goal state before:
pp: case h
R : Type u_1
inst✝⁵ : Ring R
inst✝⁴ : ValuativeRel R
Γ₀ : Type u_3
inst✝³ : LinearOrderedCommGroupWithZero Γ₀
inst✝² : TopologicalSpace R
v : Valuation R Γ₀
inst✝¹ : v.Compatible
inst✝ : IsValuativeTopology R
x : R
h : v x ≠ 0
h' : v.restrict x ≠ 0
y : R
⊢ y ∈ {z | v.restrict (z - x) < v.restrict x} → y ∈ {y | v y = v x}

Tactic:
y_in

Goal state after:
case h
R : Type u_1
inst✝⁵ : Ring R
inst✝⁴ : ValuativeRel R
Γ₀ : Type u_3
inst✝³ : LinearOrderedCommGroupWithZero Γ₀
inst✝² : TopologicalSpace R
v : Valuation R Γ₀
inst✝¹ : v.Compatible
inst✝ : IsValuativeTopology R
x : R
h : v x ≠ 0
h' : v.restrict x ≠ 0
y : R
y_in : y ∈ {z | v.restrict (z - x) < v.restrict x}
⊢ y ∈ {y | v y = v x}
Module: Mathlib.Topology.Algebra.Valued.ValuationTopology

Goal state before:
pp: case inl
R : Type u
inst✝¹ : Ring R
Γ₀ : Type v
inst✝ : LinearOrderedCommGroupWithZero Γ₀
_i : Valued R Γ₀
⊢ IsClosed[_i.toTopologicalSpace] {x | v.restrict x = 0}

Tactic:
simpa using isClosed_closedBall R 0

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Formula

Goal state before:
pp: R : Type r
inst✝ : CommRing R
W' : Jacobian R
P : Fin 3 → R
hP : W'.Equation P
⊢ W'.addY P P = 0

Tactic:
by
  rw [addY, negY_eq, addX_self hP, negAddY_self, addZ_self]
  ring1

Goal state after:
Module: Mathlib.RingTheory.Valuation.Discrete.Basic

Goal state before:
pp: Γ : Type u_1
inst✝¹ : LinearOrderedCommGroupWithZero Γ
A : Type u_2
inst✝ : Ring A
v : Valuation A Γ
hv : v.IsRankOneDiscrete
π : A
hπ : v.IsUniformizer π
⊢ v π ≠ 0

Tactic:
by_contra h0
  simp only [IsUniformizer, h0] at hπ
  exact (Units.ne_zero _).symm hπ

Goal state after:
Module: Mathlib.AlgebraicGeometry.EllipticCurve.Jacobian.Formula

Goal state before:
pp: R : Type r
inst✝ : CommRing R
W' : Jacobian R
P : Fin 3 → R
hP : W'.Equation P
⊢ W'.addXYZ P P = ![0, 0, 0]

Tactic:
by
  rw [addXYZ, addX_self hP, addY_self hP, addZ_self]

Goal state after:
Module: Mathlib.Topology.Algebra.Valued.WithVal

Goal state before:
pp: Γ₀ : Type u_2
inst✝¹ : LinearOrderedCommGroupWithZero Γ₀
R : Type u_3
inst✝ : Ring R
v : Valuation R Γ₀
b : WithVal v
⊢ (valueGroupOrderIso₀ v) ((valuation v).restrict b) = v.restrict b.ofVal

Tactic:
simp [(WithVal.valuation v).restrict_def, restrict₀_apply, ← valuation_apply_eq_ofVal,
    v.restrict_def]
  by_cases hb : v b.ofVal = 0 <;> simp [hb]

Goal state after:
Module: Mathlib.Topology.Algebra.Valued.ValuedField

Goal state before:
pp: case h
K : Type u_1
inst✝² : DivisionRing K
Γ₀ : Type u_2
inst✝¹ : LinearOrderedCommGroupWithZero Γ₀
inst✝ : Valued K Γ₀
x : K
x_ne : x ≠ 0
s : Set K
γ : (ofClass v).ValueGroup₀ˣ
hs : {y | v.restrict (y - x⁻¹) < ↑γ} ⊆ s
γ' : (ofClass v).ValueGroup₀ˣ := Units.mk0 ((restrict₀ (ofClass v)) x) ⋯
y : K
⊢ y ∈ {y | v.restrict (y - x) < ↑(min (γ * (γ' * γ')) γ')} → y ∈ Inv.inv ⁻¹' s

Tactic:
y_in

Goal state after:
case h
K : Type u_1
inst✝² : DivisionRing K
Γ₀ : Type u_2
inst✝¹ : LinearOrderedCommGroupWithZero Γ₀
inst✝ : Valued K Γ₀
x : K
x_ne : x ≠ 0
s : Set K
γ : (ofClass v).ValueGroup₀ˣ
hs : {y | v.restrict (y - x⁻¹) < ↑γ} ⊆ s
γ' : (ofClass v).ValueGroup₀ˣ := Units.mk0 ((restrict₀ (ofClass v)) x) ⋯
y : K
y_in : y ∈ {y | v.restrict (y - x) < ↑(min (γ * (γ' * γ')) γ')}
⊢ y ∈ Inv.inv ⁻¹' s
Module: Mathlib.RingTheory.Valuation.Discrete.IsDiscreteValuationRing

Goal state before:
pp: A : Type u_1
K : Type u_2
inst✝⁵ : CommRing A
inst✝⁴ : IsDomain A
inst✝³ : IsDiscreteValuationRing A
inst✝² : Field K
inst✝¹ : Algebra A K
inst✝ : IsFractionRing A K
x y : K
h : (valuation K (maximalIdeal A)) x = (valuation K (maximalIdeal A)) y
⊢ ∃ u, u • x = y

Tactic:
by_cases hx : x = 0

Goal state after:
case pos
A : Type u_1
K : Type u_2
inst✝⁵ : CommRing A
inst✝⁴ : IsDomain A
inst✝³ : IsDiscreteValuationRing A
inst✝² : Field K
inst✝¹ : Algebra A K
inst✝ : IsFractionRing A K
x y : K
h : (valuation K (maximalIdeal A)) x = (valuation K (maximalIdeal A)) y
hx : x = 0
⊢ ∃ u, u • x = y

case neg
A : Type u_1
K : Type u_2
inst✝⁵ : CommRing A
inst✝⁴ : IsDomain A
inst✝³ : IsDiscreteValuationRing A
inst✝² : Field K
inst✝¹ : Algebra A K
inst✝ : IsFractionRing A K
x y : K
h : (valuation K (maximalIdeal A)) x = (valuation K (maximalIdeal A)) y
hx : ¬x = 0
⊢ ∃ u, u • x = y
Module: Mathlib.RingTheory.Valuation.Discrete.IsDiscreteValuationRing

Goal state before:
pp: A : Type u_1
inst✝² : CommRing A
inst✝¹ : IsDomain A
inst✝ : IsDiscreteValuationRing A
x : A
⊢ (maximalIdeal A).intValuation x = (ENat.recTopCoe 0 (fun x ↦ ↑(ofAdd ↑x)) ((addVal A) x))⁻¹

Tactic:
by_cases hx : x = 0

Goal state after:
case pos
A : Type u_1
inst✝² : CommRing A
inst✝¹ : IsDomain A
inst✝ : IsDiscreteValuationRing A
x : A
hx : x = 0
⊢ (maximalIdeal A).intValuation x = (ENat.recTopCoe 0 (fun x ↦ ↑(ofAdd ↑x)) ((addVal A) x))⁻¹

case neg
A : Type u_1
inst✝² : CommRing A
inst✝¹ : IsDomain A
inst✝ : IsDiscreteValuationRing A
x : A
hx : ¬x = 0
⊢ (maximalIdeal A).intValuation x = (ENat.recTopCoe 0 (fun x ↦ ↑(ofAdd ↑x)) ((addVal A) x))⁻¹
Module: Mathlib.GroupTheory.ArchimedeanDensely

Goal state before:
pp: e : ℤ ≃+o ℤᵒᵈ
⊢ e.toAddEquiv =
    { toAddEquiv := (AddEquiv.neg ℤ).trans { toEquiv := toDual, map_add' := ⋯ },
        map_le_map_iff' := @instUniqueOrderAddMonoidIsoIntOrderDual._proof_1 }.toAddEquiv

Tactic:
by
    simp only [OrderAddMonoidIso.toAddEquiv_eq_coe]
    refine Int.addEquiv_eq_refl_or_neg ((e : ℤ ≃+ ℤᵒᵈ).trans ⟨toDual, toDual_add⟩)
        |>.resolve_left fun H => by
      replace H : e 1 = 1 := congr($H 1)
      have h1 : 0 < e 1 := by
        rw [← map_zero e, map_lt_map_iff]
        simp
      simp [H, ← ofDual_lt_ofDual] at h1

Goal state after:
Module: Mathlib.Topology.Algebra.Valued.ValuedField

Goal state before:
pp: case inr
K : Type u_1
inst✝¹ : Field K
Γ₀ : Type u_2
inst✝ : LinearOrderedCommGroupWithZero Γ₀
hv : Valued K Γ₀
x₀ : hat K
h : x₀ ≠ 0
preimage_one : ⇑v ⁻¹' {1} ∈ 𝓝 1
V : Set (hat K)
V_in : V ∈ 𝓝 1
hV : ∀ (x : K), ↑x ∈ V → v x = 1
V' : Set (hat K)
V'_in : V' ∈ 𝓝 1
zeroV' : 0 ∉ V'
hV' : ∀ x ∈ V', ∀ y ∈ V', x * y⁻¹ ∈ V
⊢ ∃ c, Tendsto (⇑v.restrict) (Filter.comap Completion.coe' (𝓝 x₀)) (𝓝 c)

Tactic:
have nhds_right : (fun x => x * x₀) '' V' ∈ 𝓝 x₀ := by
      have l : Function.LeftInverse (fun x : hat K => x * x₀⁻¹) fun x : hat K => x * x₀ := by
        intro x
        simp only [mul_assoc, mul_inv_cancel₀ h, mul_one]
      have r : Function.RightInverse (fun x : hat K => x * x₀⁻¹) fun x : hat K => x * x₀ := by
        intro x
        simp only [mul_assoc, inv_mul_cancel₀ h, mul_one]
      have c : Continuous fun x : hat K => x * x₀⁻¹ := by fun_prop
      rw [image_eq_preimage_of_inverse l r]
      rw [← mul_inv_cancel₀ h] at V'_in
      exact c.continuousAt V'_in

Goal state after:
case inr
K : Type u_1
inst✝¹ : Field K
Γ₀ : Type u_2
inst✝ : LinearOrderedCommGroupWithZero Γ₀
hv : Valued K Γ₀
x₀ : hat K
h : x₀ ≠ 0
preimage_one : ⇑v ⁻¹' {1} ∈ 𝓝 1
V : Set (hat K)
V_in : V ∈ 𝓝 1
hV : ∀ (x : K), ↑x ∈ V → v x = 1
V' : Set (hat K)
V'_in : V' ∈ 𝓝 1
zeroV' : 0 ∉ V'
hV' : ∀ x ∈ V', ∀ y ∈ V', x * y⁻¹ ∈ V
nhds_right : (fun x ↦ x * x₀) '' V' ∈ 𝓝 x₀
⊢ ∃ c, Tendsto (⇑v.restrict) (Filter.comap Completion.coe' (𝓝 x₀)) (𝓝 c)