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

Goal state before:
pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
inst✝⁴ : Preadditive C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝ : Pretriangulated C
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : Z₁₂ ⟶ X₁
w₁₂ : X₂ ⟶ (shiftFunctor C 1).obj Z₁₂
h₁₂ : Triangle.mk v₁₂ u₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : Z₂₃ ⟶ X₂
w₂₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₂₃
h₂₃ : Triangle.mk v₂₃ u₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : Z₁₃ ⟶ X₁
w₁₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₁₃
h₁₃ : Triangle.mk v₁₃ u₁₃ w₁₃ ∈ distinguishedTriangles
h : Octahedron' comm h₁₂ h₂₃ h₁₃
⊢ (Triangle.mk v₁₃ u₁₃ w₁₃).mor₁ ≫ u₁₂ = h.m₃ ≫ (Triangle.mk v₂₃ u₂₃ w₂₃).mor₁

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Functor

Goal state before:
pp: C : Type u_1
D : Type u_2
inst✝¹³ : Category.{v_1, u_1} C
inst✝¹² : Category.{v_2, u_2} D
inst✝¹¹ : HasShift C ℤ
inst✝¹⁰ : HasShift D ℤ
inst✝⁹ : HasZeroObject C
inst✝⁸ : HasZeroObject D
inst✝⁷ : Preadditive C
inst✝⁶ : Preadditive D
inst✝⁵ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝⁴ : ∀ (n : ℤ), (shiftFunctor D n).Additive
inst✝³ : Pretriangulated C
inst✝² : Pretriangulated D
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : X₂ ⟶ Z₁₂
w₁₂ : Z₁₂ ⟶ (shiftFunctor C 1).obj X₁
h₁₂ : Triangle.mk u₁₂ v₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : X₃ ⟶ Z₂₃
w₂₃ : Z₂₃ ⟶ (shiftFunctor C 1).obj X₂
h₂₃ : Triangle.mk u₂₃ v₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : X₃ ⟶ Z₁₃
w₁₃ : Z₁₃ ⟶ (shiftFunctor C 1).obj X₁
h₁₃ : Triangle.mk u₁₃ v₁₃ w₁₃ ∈ distinguishedTriangles
h : Octahedron comm h₁₂ h₂₃ h₁₃
F : C ⥤ D
inst✝¹ : F.CommShift ℤ
inst✝ : F.IsTriangulated
⊢ (F.map (Triangle.mk u₁₃ v₁₃ w₁₃).mor₃ ≫ (Functor.commShiftIso F 1).hom.app (Triangle.mk u₁₃ v₁₃ w₁₃).obj₁) ≫
      (shiftFunctor D 1).map (F.map (Triangle.mk u₁₂ v₁₂ w₁₂).mor₁) =
    F.map h.m₃ ≫
      F.map (Triangle.mk u₂₃ v₂₃ w₂₃).mor₃ ≫ (Functor.commShiftIso F 1).hom.app (Triangle.mk u₂₃ v₂₃ w₂₃).obj₁

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₂ : T₁.obj₂ ≅ T₂.obj₂
comm : T₁.mor₁ ≫ e₂.hom = e₁.hom ≫ T₂.mor₁
h :
  ∃ e', e'.hom.hom₁ = Arrow.Hom.left (Arrow.isoMk e₁ e₂ ⋯).hom ∧ e'.hom.hom₂ = Arrow.Hom.right (Arrow.isoMk e₁ e₂ ⋯).hom
⊢ T₁.mor₂ ≫ (Triangle.π₃.mapIso h.choose).hom = e₂.hom ≫ T₂.mor₂

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Triangulated

Goal state before:
pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
inst✝⁴ : Preadditive C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝ : Pretriangulated C
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : Z₁₂ ⟶ X₁
w₁₂ : X₂ ⟶ (shiftFunctor C 1).obj Z₁₂
h₁₂ : Triangle.mk v₁₂ u₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : Z₂₃ ⟶ X₂
w₂₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₂₃
h₂₃ : Triangle.mk v₂₃ u₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : Z₁₃ ⟶ X₁
w₁₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₁₃
h₁₃ : Triangle.mk v₁₃ u₁₃ w₁₃ ∈ distinguishedTriangles
h : Octahedron' comm h₁₂ h₂₃ h₁₃
⊢ (Triangle.mk v₁₃ u₁₃ w₁₃).mor₂ ≫ 𝟙 X₃ = u₁₂ ≫ (Triangle.mk v₂₃ u₂₃ w₂₃).mor₂

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
⊢ (CategoryTheory.shiftFunctor (CochainComplex C ℤ) 1).map S.f ≫ (mappingConeHomOfDegreewiseSplitIso S σ).inv =
    -mappingCone.inr (homOfDegreewiseSplit S σ)

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
⊢ (mappingConeHomOfDegreewiseSplitIso S σ).inv ≫ (mappingCone.triangle (homOfDegreewiseSplit S σ)).mor₃ =
    -(CategoryTheory.shiftFunctor (CochainComplex C ℤ) 1).map S.g

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Triangulated

Goal state before:
pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
inst✝⁴ : Preadditive C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝ : Pretriangulated C
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : Z₁₂ ⟶ X₁
w₁₂ : X₂ ⟶ (shiftFunctor C 1).obj Z₁₂
h₁₂ : Triangle.mk v₁₂ u₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : Z₂₃ ⟶ X₂
w₂₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₂₃
h₂₃ : Triangle.mk v₂₃ u₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : Z₁₃ ⟶ X₁
w₁₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₁₃
h₁₃ : Triangle.mk v₁₃ u₁₃ w₁₃ ∈ distinguishedTriangles
h : Octahedron' comm h₁₂ h₂₃ h₁₃
⊢ (Triangle.mk v₁₃ u₁₃ w₁₃).mor₃ ≫ (shiftFunctor C 1).map h.m₃ = 𝟙 X₃ ≫ (Triangle.mk v₂₃ u₂₃ w₂₃).mor₃

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
⊢ (triangleOfDegreewiseSplit S σ).rotate.rotate.mor₁ ≫
      (Iso.refl (triangleOfDegreewiseSplit S σ).rotate.rotate.obj₂).hom =
    (Iso.refl (triangleOfDegreewiseSplit S σ).rotate.rotate.obj₁).hom ≫
      (mappingCone.triangle (homOfDegreewiseSplit S σ)).mor₁

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₂ : T₁.obj₂ ≅ T₂.obj₂
comm : T₁.mor₁ ≫ e₂.hom = e₁.hom ≫ T₂.mor₁
h :
  ∃ e', e'.hom.hom₁ = Arrow.Hom.left (Arrow.isoMk e₁ e₂ ⋯).hom ∧ e'.hom.hom₂ = Arrow.Hom.right (Arrow.isoMk e₁ e₂ ⋯).hom
⊢ T₁.mor₃ ≫ (shiftFunctor C 1).map e₁.hom = (Triangle.π₃.mapIso h.choose).hom ≫ T₂.mor₃

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
⊢ (triangleOfDegreewiseSplit S σ).rotate.rotate.mor₂ ≫ (mappingConeHomOfDegreewiseSplitIso S σ).symm.hom =
    (Iso.refl (triangleOfDegreewiseSplit S σ).rotate.rotate.obj₂).hom ≫
      (mappingCone.triangle (homOfDegreewiseSplit S σ)).mor₂

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₂ : T₁.obj₂ ≅ T₂.obj₂
comm : T₁.mor₁ ≫ e₂.hom = e₁.hom ≫ T₂.mor₁
⊢ T₁ ≅ T₂

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₃ : T₁.obj₃ ≅ T₂.obj₃
comm : T₁.mor₃ ≫ (shiftFunctor C 1).map e₁.hom = e₃.hom ≫ T₂.mor₃
⊢ 1 + -1 = 0

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
⊢ (triangleOfDegreewiseSplit S σ).rotate.rotate.mor₃ ≫
      (CategoryTheory.shiftFunctor (CochainComplex C ℤ) 1).map
        (Iso.refl (triangleOfDegreewiseSplit S σ).rotate.rotate.obj₁).hom =
    (mappingConeHomOfDegreewiseSplitIso S σ).symm.hom ≫ (mappingCone.triangle (homOfDegreewiseSplit S σ)).mor₃

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
⊢ (triangle φ).rotate.mor₁ ≫ (triangle φ).rotate.mor₂ = 0

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
n : ℤ
⊢ n + 1 + -1 = n

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
n : ℤ
⊢ (snd φ).v n n ⋯ ≫ ((triangleRotateShortComplex φ).map (eval C (ComplexShape.up ℤ) n)).f +
      ((triangleRotateShortComplex φ).map (eval C (ComplexShape.up ℤ) n)).g ≫ (-(inl φ).v (n + 1) n ⋯) =
    𝟙 ((triangleRotateShortComplex φ).map (eval C (ComplexShape.up ℤ) n)).X₂

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₃ : T₁.obj₃ ≅ T₂.obj₃
comm : T₁.mor₃ ≫ (shiftFunctor C 1).map e₁.hom = e₃.hom ≫ T₂.mor₃
⊢ ((shiftFunctor C (-1)).mapIso e₃).hom ≫ (Arrow.mk T₂.invRotate.mor₁).hom = (Arrow.mk T₁.invRotate.mor₁).hom ≫ e₁.hom

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
p : ℤ
⊢ (↑(cocycleOfDegreewiseSplit (triangleRotateShortComplex φ) (triangleRotateShortComplexSplitting φ))).v p (p + 1) ⋯ =
    -φ.f (p + { as := 1 }.as)

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
⊢ (triangle φ).rotate.mor₁ ≫ (Iso.refl (triangle φ).rotate.obj₂).hom =
    (Iso.refl (triangle φ).rotate.obj₁).hom ≫
      (triangleOfDegreewiseSplit (triangleRotateShortComplex φ) (triangleRotateShortComplexSplitting φ)).mor₁

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
⊢ (triangle φ).rotate.mor₂ ≫ (Iso.refl (triangle φ).rotate.obj₃).hom =
    (Iso.refl (triangle φ).rotate.obj₂).hom ≫
      (triangleOfDegreewiseSplit (triangleRotateShortComplex φ) (triangleRotateShortComplexSplitting φ)).mor₂

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝² : Category.{v, u_1} C
inst✝¹ : Preadditive C
S : ShortComplex (CochainComplex C ℤ)
σ : (n : ℤ) → (S.map (eval C (ComplexShape.up ℤ) n)).Splitting
inst✝ : HasBinaryBiproducts C
K L : CochainComplex C ℤ
φ : K ⟶ L
⊢ (triangle φ).rotate.mor₃ ≫
      (CategoryTheory.shiftFunctor (CochainComplex C ℤ) 1).map (Iso.refl (triangle φ).rotate.obj₁).hom =
    (Iso.refl (triangle φ).rotate.obj₃).hom ≫
      (triangleOfDegreewiseSplit (triangleRotateShortComplex φ) (triangleRotateShortComplexSplitting φ)).mor₃

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Pretriangulated

Goal state before:
pp: C : Type u
inst✝⁴ : Category.{v, u} C
inst✝³ : HasZeroObject C
inst✝² : HasShift C ℤ
inst✝¹ : Preadditive C
inst✝ : ∀ (n : ℤ), (shiftFunctor C n).Additive
hC : Pretriangulated C
T₁ T₂ : Triangle C
hT₁ : T₁ ∈ distinguishedTriangles
hT₂ : T₂ ∈ distinguishedTriangles
e₁ : T₁.obj₁ ≅ T₂.obj₁
e₃ : T₁.obj₃ ≅ T₂.obj₃
comm : T₁.mor₃ ≫ (shiftFunctor C 1).map e₁.hom = e₃.hom ≫ T₂.mor₃
h :
  ∃ e',
    e'.hom.hom₁ = Arrow.Hom.left (Arrow.isoMk ((shiftFunctor C (-1)).mapIso e₃) e₁ ⋯).hom ∧
      e'.hom.hom₂ = Arrow.Hom.right (Arrow.isoMk ((shiftFunctor C (-1)).mapIso e₃) e₁ ⋯).hom
e : T₁.invRotate ≅ T₂.invRotate := h.choose
h₁ : e.hom.hom₁ = Arrow.Hom.left (Arrow.isoMk ((shiftFunctor C (-1)).mapIso e₃) e₁ ⋯).hom
h₂ : Arrow.Hom.right (Arrow.isoMk ((shiftFunctor C (-1)).mapIso e₃) e₁ ⋯).hom = e.hom.hom₂
h₃ : T₁.invRotate.mor₃ ≫ (shiftFunctor C 1).map e.hom.hom₁ = e.hom.hom₃ ≫ T₂.invRotate.mor₃
⊢ -1 + 1 = 0

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Triangulated

Goal state before:
pp: C : Type u_1
inst✝⁶ : Category.{v_1, u_1} C
inst✝⁵ : Preadditive C
inst✝⁴ : HasZeroObject C
inst✝³ : HasShift C ℤ
inst✝² : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝¹ : Pretriangulated C
inst✝ : IsTriangulated C
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : Z₁₂ ⟶ X₁
w₁₂ : X₂ ⟶ (shiftFunctor C 1).obj Z₁₂
h₁₂ : Triangle.mk v₁₂ u₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : Z₂₃ ⟶ X₂
w₂₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₂₃
h₂₃ : Triangle.mk v₂₃ u₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : Z₁₃ ⟶ X₁
w₁₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₁₃
h₁₃ : Triangle.mk v₁₃ u₁₃ w₁₃ ∈ distinguishedTriangles
o : Octahedron comm ⋯ ⋯ ⋯ := someOctahedron comm ⋯ ⋯ ⋯
m₁ : Z₁₂ ⟶ Z₁₃ := (shiftShiftNeg Z₁₂ 1).inv ≫ (shiftFunctor C (-1)).map o.m₁ ≫ (shiftShiftNeg Z₁₃ 1).hom
m₃ : Z₁₃ ⟶ Z₂₃ := (shiftShiftNeg Z₁₃ 1).inv ≫ (shiftFunctor C (-1)).map o.m₃ ≫ (shiftShiftNeg Z₂₃ 1).hom
eq₁ : w₁₂ ≫ o.m₁ = u₂₃ ≫ w₁₃
eq₂ : o.m₁ ≫ (-(shiftFunctor C 1).map v₁₃) = -(shiftFunctor C 1).map v₁₂
eq₃ : w₁₃ ≫ o.m₃ = w₂₃
eq₄ : (-(shiftFunctor C 1).map v₁₃) ≫ (shiftFunctor C 1).map u₁₂ = o.m₃ ≫ (-(shiftFunctor C 1).map v₂₃)
⊢ Octahedron' comm h₁₂ h₂₃ h₁₃

Tactic:
comp_neg,

Goal state after:
C : Type u_1
inst✝⁶ : Category.{v_1, u_1} C
inst✝⁵ : Preadditive C
inst✝⁴ : HasZeroObject C
inst✝³ : HasShift C ℤ
inst✝² : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝¹ : Pretriangulated C
inst✝ : IsTriangulated C
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : Z₁₂ ⟶ X₁
w₁₂ : X₂ ⟶ (shiftFunctor C 1).obj Z₁₂
h₁₂ : Triangle.mk v₁₂ u₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : Z₂₃ ⟶ X₂
w₂₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₂₃
h₂₃ : Triangle.mk v₂₃ u₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : Z₁₃ ⟶ X₁
w₁₃ : X₃ ⟶ (shiftFunctor C 1).obj Z₁₃
h₁₃ : Triangle.mk v₁₃ u₁₃ w₁₃ ∈ distinguishedTriangles
o : Octahedron comm ⋯ ⋯ ⋯ := someOctahedron comm ⋯ ⋯ ⋯
m₁ : Z₁₂ ⟶ Z₁₃ := (shiftShiftNeg Z₁₂ 1).inv ≫ (shiftFunctor C (-1)).map o.m₁ ≫ (shiftShiftNeg Z₁₃ 1).hom
m₃ : Z₁₃ ⟶ Z₂₃ := (shiftShiftNeg Z₁₃ 1).inv ≫ (shiftFunctor C (-1)).map o.m₃ ≫ (shiftShiftNeg Z₂₃ 1).hom
eq₁ : w₁₂ ≫ o.m₁ = u₂₃ ≫ w₁₃
eq₂ : -o.m₁ ≫ (shiftFunctor C 1).map v₁₃ = -(shiftFunctor C 1).map v₁₂
eq₃ : w₁₃ ≫ o.m₃ = w₂₃
eq₄ : (-(shiftFunctor C 1).map v₁₃) ≫ (shiftFunctor C 1).map u₁₂ = o.m₃ ≫ (-(shiftFunctor C 1).map v₂₃)
⊢ Octahedron' comm h₁₂ h₂₃ h₁₃
Module: Mathlib.CategoryTheory.Triangulated.Functor

Goal state before:
pp: C : Type u_1
D : Type u_2
inst✝¹⁵ : Category.{v_1, u_1} C
inst✝¹⁴ : Category.{v_2, u_2} D
inst✝¹³ : HasShift C ℤ
inst✝¹² : HasShift D ℤ
inst✝¹¹ : HasZeroObject C
inst✝¹⁰ : HasZeroObject D
inst✝⁹ : Preadditive C
inst✝⁸ : Preadditive D
inst✝⁷ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝⁶ : ∀ (n : ℤ), (shiftFunctor D n).Additive
inst✝⁵ : Pretriangulated C
inst✝⁴ : Pretriangulated D
F : C ⥤ D
inst✝³ : F.CommShift ℤ
inst✝² : F.IsTriangulated
inst✝¹ : (F.mapComposableArrows 2).EssSurj
inst✝ : IsTriangulated C
⊢ IsTriangulated D

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomotopyCategory.DegreewiseSplit

Goal state before:
pp: C : Type u_1
inst✝³ : Category.{v, u_1} C
inst✝² : Preadditive C
inst✝¹ : HasZeroObject C
inst✝ : HasBinaryBiproducts C
T : Triangle (HomotopyCategory C (ComplexShape.up ℤ))
⊢ T ∈ distinguishedTriangles ↔ ∃ S σ, Nonempty (T ≅ CochainComplex.trianglehOfDegreewiseSplit S σ)

Tactic:
by

Goal state after:
Module: Mathlib.CategoryTheory.Triangulated.Functor

Goal state before:
pp: C : Type u_1
D : Type u_2
inst✝¹⁶ : Category.{v_1, u_1} C
inst✝¹⁵ : Category.{v_2, u_2} D
inst✝¹⁴ : HasShift C ℤ
inst✝¹³ : HasShift D ℤ
inst✝¹² : HasZeroObject C
inst✝¹¹ : HasZeroObject D
inst✝¹⁰ : Preadditive C
inst✝⁹ : Preadditive D
inst✝⁸ : ∀ (n : ℤ), (shiftFunctor C n).Additive
inst✝⁷ : ∀ (n : ℤ), (shiftFunctor D n).Additive
inst✝⁶ : Pretriangulated C
inst✝⁵ : Pretriangulated D
F : C ⥤ D
inst✝⁴ : F.CommShift ℤ
inst✝³ : F.IsTriangulated
inst✝² : F.Full
inst✝¹ : F.Faithful
inst✝ : IsTriangulated D
X₁ X₂ X₃ Z₁₂ Z₂₃ Z₁₃ : C
u₁₂ : X₁ ⟶ X₂
u₂₃ : X₂ ⟶ X₃
u₁₃ : X₁ ⟶ X₃
comm : u₁₂ ≫ u₂₃ = u₁₃
v₁₂ : X₂ ⟶ Z₁₂
w₁₂ : Z₁₂ ⟶ (shiftFunctor C 1).obj X₁
h₁₂ : Triangle.mk u₁₂ v₁₂ w₁₂ ∈ distinguishedTriangles
v₂₃ : X₃ ⟶ Z₂₃
w₂₃ : Z₂₃ ⟶ (shiftFunctor C 1).obj X₂
h₂₃ : Triangle.mk u₂₃ v₂₃ w₂₃ ∈ distinguishedTriangles
v₁₃ : X₃ ⟶ Z₁₃
w₁₃ : Z₁₃ ⟶ (shiftFunctor C 1).obj X₁
h₁₃ : Triangle.mk u₁₃ v₁₃ w₁₃ ∈ distinguishedTriangles
⊢ F.map u₁₂ ≫ F.map u₂₃ = F.map u₁₃

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝⁵ : Category.{v_1, u_1} C
inst✝⁴ : HasZeroMorphisms C
c : ComplexShape ι
K L : HomologicalComplex C c
φ : K ⟶ L
i j : ι
inst✝³ : K.HasHomology i
inst✝² : K.HasHomology j
inst✝¹ : L.HasHomology i
inst✝ : L.HasHomology j
⊢ K.fromOpcycles i j ≫ K.d j (c.next j) = 0

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : HasZeroMorphisms C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ K.opcyclesToCycles i j ≫ K.iCycles j = K.fromOpcycles i j

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : HasZeroMorphisms C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ K.pOpcycles i ≫ K.opcyclesToCycles i j ≫ K.iCycles j = K.d i j

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : HasZeroMorphisms C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ K.pOpcycles i ≫ K.opcyclesToCycles i j = K.toCycles i j

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : HasZeroMorphisms C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ K.homologyι i ≫ K.opcyclesToCycles i j = 0

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : HasZeroMorphisms C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ K.opcyclesToCycles i j ≫ K.homologyπ j = 0

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝⁵ : Category.{v_1, u_1} C
inst✝⁴ : HasZeroMorphisms C
c : ComplexShape ι
K L : HomologicalComplex C c
φ : K ⟶ L
i j : ι
inst✝³ : K.HasHomology i
inst✝² : K.HasHomology j
inst✝¹ : L.HasHomology i
inst✝ : L.HasHomology j
⊢ opcyclesMap φ i ≫ L.opcyclesToCycles i j = K.opcyclesToCycles i j ≫ cyclesMap φ j

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : Preadditive C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
hij : c.Rel i j
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ Mono
    ((composableArrows₃ K i j).map' 0 1 instMonoMap'ComposableArrows₃OfNatNat._proof_1
      instMonoMap'ComposableArrows₃OfNatNat._proof_3)

Tactic:
by

Goal state after:
Module: Mathlib.Algebra.Homology.HomologySequence

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝³ : Category.{v_1, u_1} C
inst✝² : Preadditive C
c : ComplexShape ι
K : HomologicalComplex C c
i j : ι
hij : c.Rel i j
inst✝¹ : K.HasHomology i
inst✝ : K.HasHomology j
⊢ Epi
    ((composableArrows₃ K i j).map' 2 3 instEpiMap'ComposableArrows₃OfNatNat._proof_2
      instEpiMap'ComposableArrows₃OfNatNat._proof_3)

Tactic:
by

Goal state after: