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

Goal state before:
pp: C₁ : Type u_2
C₂ : Type u_3
C₃ : Type u_4
D₁ : Type u_5
D₂ : Type u_6
D₃ : Type u_7
inst✝⁸ : Category.{v_2, u_2} C₁
inst✝⁷ : Category.{v_3, u_3} C₂
inst✝⁶ : Category.{v_4, u_4} C₃
inst✝⁵ : Category.{v_5, u_5} D₁
inst✝⁴ : Category.{v_6, u_6} D₂
inst✝³ : Category.{v_7, u_7} D₃
W₁ : MorphismProperty C₁
W₂ : MorphismProperty C₂
W₃ : MorphismProperty C₃
Φ : LocalizerMorphism W₁ W₂
Ψ : LocalizerMorphism W₂ W₃
L₁ : C₁ ⥤ D₁
inst✝² : L₁.IsLocalization W₁
L₂ : C₂ ⥤ D₂
inst✝¹ : L₂.IsLocalization W₂
L₃ : C₃ ⥤ D₃
inst✝ : L₃.IsLocalization W₃
X Y : C₁
f : L₁.obj X ⟶ L₁.obj Y
G : D₁ ⥤ D₂ := Φ.localizedFunctor L₁ L₂
G' : D₂ ⥤ D₃ := Ψ.localizedFunctor L₂ L₃
e : Φ.functor ⋙ L₂ ≅ L₁ ⋙ G := CatCommSq.iso Φ.functor L₁ L₂ G
e' : Ψ.functor ⋙ L₃ ≅ L₂ ⋙ G' := CatCommSq.iso Ψ.functor L₂ L₃ G'
⊢ Ψ.homMap L₂ L₃ (e.hom.app X ≫ G.map f ≫ e.inv.app Y) = (Φ.comp Ψ).homMap L₁ L₃ f

Tactic:
Ψ.homMap_apply L₂ L₃ G' e',

Goal state after:
C₁ : Type u_2
C₂ : Type u_3
C₃ : Type u_4
D₁ : Type u_5
D₂ : Type u_6
D₃ : Type u_7
inst✝⁸ : Category.{v_2, u_2} C₁
inst✝⁷ : Category.{v_3, u_3} C₂
inst✝⁶ : Category.{v_4, u_4} C₃
inst✝⁵ : Category.{v_5, u_5} D₁
inst✝⁴ : Category.{v_6, u_6} D₂
inst✝³ : Category.{v_7, u_7} D₃
W₁ : MorphismProperty C₁
W₂ : MorphismProperty C₂
W₃ : MorphismProperty C₃
Φ : LocalizerMorphism W₁ W₂
Ψ : LocalizerMorphism W₂ W₃
L₁ : C₁ ⥤ D₁
inst✝² : L₁.IsLocalization W₁
L₂ : C₂ ⥤ D₂
inst✝¹ : L₂.IsLocalization W₂
L₃ : C₃ ⥤ D₃
inst✝ : L₃.IsLocalization W₃
X Y : C₁
f : L₁.obj X ⟶ L₁.obj Y
G : D₁ ⥤ D₂ := Φ.localizedFunctor L₁ L₂
G' : D₂ ⥤ D₃ := Ψ.localizedFunctor L₂ L₃
e : Φ.functor ⋙ L₂ ≅ L₁ ⋙ G := CatCommSq.iso Φ.functor L₁ L₂ G
e' : Ψ.functor ⋙ L₃ ≅ L₂ ⋙ G' := CatCommSq.iso Ψ.functor L₂ L₃ G'
⊢ e'.hom.app (Φ.functor.obj X) ≫ G'.map (e.hom.app X ≫ G.map f ≫ e.inv.app Y) ≫ e'.inv.app (Φ.functor.obj Y) =
    (Φ.comp Ψ).homMap L₁ L₃ f
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: C : Type u
inst✝³ : Category.{v, u} C
inst✝² : Abelian C
inst✝¹ : HasDerivedCategory C
X Y : CochainComplex C ℤ
n : ℤ
inst✝ : Y.IsStrictlyGE n
Y' : CochainComplex C ℤ
g : X ⟶ Y'
s : Y ⟶ Y'
hs : QuasiIso s
⊢ ∀ (i : ℤ), n ≤ i → QuasiIsoAt s i

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Localization.HomEquiv

Goal state before:
pp: C₁ : Type u_2
C₂ : Type u_3
C₃ : Type u_4
D₁ : Type u_5
D₂ : Type u_6
D₃ : Type u_7
inst✝⁸ : Category.{v_2, u_2} C₁
inst✝⁷ : Category.{v_3, u_3} C₂
inst✝⁶ : Category.{v_4, u_4} C₃
inst✝⁵ : Category.{v_5, u_5} D₁
inst✝⁴ : Category.{v_6, u_6} D₂
inst✝³ : Category.{v_7, u_7} D₃
W₁ : MorphismProperty C₁
W₂ : MorphismProperty C₂
W₃ : MorphismProperty C₃
Φ : LocalizerMorphism W₁ W₂
Ψ : LocalizerMorphism W₂ W₃
L₁ : C₁ ⥤ D₁
inst✝² : L₁.IsLocalization W₁
L₂ : C₂ ⥤ D₂
inst✝¹ : L₂.IsLocalization W₂
L₃ : C₃ ⥤ D₃
inst✝ : L₃.IsLocalization W₃
X Y : C₁
f : L₁.obj X ⟶ L₁.obj Y
G : D₁ ⥤ D₂ := Φ.localizedFunctor L₁ L₂
G' : D₂ ⥤ D₃ := Ψ.localizedFunctor L₂ L₃
e : Φ.functor ⋙ L₂ ≅ L₁ ⋙ G := CatCommSq.iso Φ.functor L₁ L₂ G
e' : Ψ.functor ⋙ L₃ ≅ L₂ ⋙ G' := CatCommSq.iso Ψ.functor L₂ L₃ G'
⊢ e'.hom.app (Φ.functor.obj X) ≫ G'.map (e.hom.app X ≫ G.map f ≫ e.inv.app Y) ≫ e'.inv.app (Φ.functor.obj Y) =
    (Φ.comp Ψ).homMap L₁ L₃ f

Tactic:
(Φ.comp Ψ).homMap_apply L₁ L₃ (G ⋙ G')
      (Functor.associator _ _ _ ≪≫ Functor.isoWhiskerLeft _ e' ≪≫
      (Functor.associator _ _ _).symm ≪≫ Functor.isoWhiskerRight e _ ≪≫
      Functor.associator _ _ _)

Goal state after:
C₁ : Type u_2
C₂ : Type u_3
C₃ : Type u_4
D₁ : Type u_5
D₂ : Type u_6
D₃ : Type u_7
inst✝⁸ : Category.{v_2, u_2} C₁
inst✝⁷ : Category.{v_3, u_3} C₂
inst✝⁶ : Category.{v_4, u_4} C₃
inst✝⁵ : Category.{v_5, u_5} D₁
inst✝⁴ : Category.{v_6, u_6} D₂
inst✝³ : Category.{v_7, u_7} D₃
W₁ : MorphismProperty C₁
W₂ : MorphismProperty C₂
W₃ : MorphismProperty C₃
Φ : LocalizerMorphism W₁ W₂
Ψ : LocalizerMorphism W₂ W₃
L₁ : C₁ ⥤ D₁
inst✝² : L₁.IsLocalization W₁
L₂ : C₂ ⥤ D₂
inst✝¹ : L₂.IsLocalization W₂
L₃ : C₃ ⥤ D₃
inst✝ : L₃.IsLocalization W₃
X Y : C₁
f : L₁.obj X ⟶ L₁.obj Y
G : D₁ ⥤ D₂ := Φ.localizedFunctor L₁ L₂
G' : D₂ ⥤ D₃ := Ψ.localizedFunctor L₂ L₃
e : Φ.functor ⋙ L₂ ≅ L₁ ⋙ G := CatCommSq.iso Φ.functor L₁ L₂ G
e' : Ψ.functor ⋙ L₃ ≅ L₂ ⋙ G' := CatCommSq.iso Ψ.functor L₂ L₃ G'
⊢ e'.hom.app (Φ.functor.obj X) ≫ G'.map (e.hom.app X ≫ G.map f ≫ e.inv.app Y) ≫ e'.inv.app (Φ.functor.obj Y) =
    (Φ.functor.associator Ψ.functor L₃ ≪≫
              Φ.functor.isoWhiskerLeft e' ≪≫
                (Φ.functor.associator L₂ G').symm ≪≫ Functor.isoWhiskerRight e G' ≪≫ L₁.associator G G').hom.app
        X ≫
      (G ⋙ G').map f ≫
        (Φ.functor.associator Ψ.functor L₃ ≪≫
                Φ.functor.isoWhiskerLeft e' ≪≫
                  (Φ.functor.associator L₂ G').symm ≪≫ Functor.isoWhiskerRight e G' ≪≫ L₁.associator G G').inv.app
          Y
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: case refine_1
C : Type u
inst✝³ : Category.{v, u} C
inst✝² : Abelian C
inst✝¹ : HasDerivedCategory C
X Y : CochainComplex C ℤ
n : ℤ
inst✝ : Y.IsStrictlyGE n
Y' : CochainComplex C ℤ
g : X ⟶ Y'
s : Y ⟶ Y'
hs : IsIso (Q.map s)
this : IsIso (Q.map (CochainComplex.truncGEMap s n))
⊢ IsIso (Q.map (Y.πTruncGE n) ≫ Q.map (CochainComplex.truncGEMap s n))

Tactic:
infer_instance

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

Goal state before:
pp: C : Type u
inst✝³ : Category.{v, u} C
inst✝² : HasZeroMorphisms C
inst✝¹ : HasZeroObject C
ι : Type u_1
inst✝ : DecidableEq ι
c : ComplexShape ι
j : ι
A B : C
f : A ⟶ B
⊢ (singleObjHomologySelfIso c j A).inv ≫ homologyMap ((single C c j).map f) j ≫ (singleObjHomologySelfIso c j B).hom =
    f ≫ (singleObjHomologySelfIso c j B).inv ≫ (singleObjHomologySelfIso c j B).hom

Tactic:
singleObjHomologySelfIso_hom_naturality,

Goal state after:
C : Type u
inst✝³ : Category.{v, u} C
inst✝² : HasZeroMorphisms C
inst✝¹ : HasZeroObject C
ι : Type u_1
inst✝ : DecidableEq ι
c : ComplexShape ι
j : ι
A B : C
f : A ⟶ B
⊢ (singleObjHomologySelfIso c j A).inv ≫ (singleObjHomologySelfIso c j A).hom ≫ f =
    f ≫ (singleObjHomologySelfIso c j B).inv ≫ (singleObjHomologySelfIso c j B).hom
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: C : Type u
inst✝⁵ : Category.{v, u} C
inst✝⁴ : Abelian C
inst✝³ : HasDerivedCategory C
X Y : CochainComplex C ℤ
a b : ℤ
inst✝² : X.IsStrictlyGE a
inst✝¹ : X.IsStrictlyLE b
inst✝ : Y.IsStrictlyGE a
f : Q.obj X ⟶ Q.obj Y
X' : CochainComplex C ℤ
hX' : X'.IsStrictlyLE b
s : X' ⟶ X
hs✝ : IsIso (Q.map s)
hs : QuasiIso s
g : X' ⟶ Y
fac : f = inv (Q.map s) ≫ Q.map g
⊢ ∀ (i : ℤ), a ≤ i → QuasiIsoAt s i

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Localization.SmallHom

Goal state before:
pp: C : Type u₁
inst✝² : Category.{v₁, u₁} C
W : MorphismProperty C
D : Type u₂
inst✝¹ : Category.{v₂, u₂} D
L : C ⥤ D
inst✝ : L.IsLocalization W
X Y : C
⊢ Small.{v₂, v₂} (L.obj X ⟶ L.obj Y)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: case refine_1
C : Type u
inst✝⁵ : Category.{v, u} C
inst✝⁴ : Abelian C
inst✝³ : HasDerivedCategory C
X Y : CochainComplex C ℤ
a b : ℤ
inst✝² : X.IsStrictlyGE a
inst✝¹ : X.IsStrictlyLE b
inst✝ : Y.IsStrictlyGE a
f : Q.obj X ⟶ Q.obj Y
X' : CochainComplex C ℤ
hX' : X'.IsStrictlyLE b
s : X' ⟶ X
hs : IsIso (Q.map s)
g : X' ⟶ Y
fac : f = inv (Q.map s) ≫ Q.map g
this : IsIso (Q.map (CochainComplex.truncGEMap s a))
⊢ IsIso (Q.map (CochainComplex.truncGEMap s a) ≫ Q.map (inv (X.πTruncGE a)))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: C : Type u
inst✝⁵ : Category.{v, u} C
inst✝⁴ : Abelian C
inst✝³ : HasDerivedCategory C
X Y : CochainComplex C ℤ
a b : ℤ
inst✝² : X.IsStrictlyLE b
inst✝¹ : Y.IsStrictlyGE a
inst✝ : Y.IsStrictlyLE b
f : Q.obj X ⟶ Q.obj Y
Y' : CochainComplex C ℤ
hY' : Y'.IsStrictlyGE a
g : X ⟶ Y'
s : Y ⟶ Y'
hs✝ : IsIso (Q.map s)
hs : QuasiIso s
fac : f = Q.map g ≫ inv (Q.map s)
⊢ ∀ i ≤ b, QuasiIsoAt s i

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Fractions

Goal state before:
pp: case refine_1
C : Type u
inst✝⁵ : Category.{v, u} C
inst✝⁴ : Abelian C
inst✝³ : HasDerivedCategory C
X Y : CochainComplex C ℤ
a b : ℤ
inst✝² : X.IsStrictlyLE b
inst✝¹ : Y.IsStrictlyGE a
inst✝ : Y.IsStrictlyLE b
f : Q.obj X ⟶ Q.obj Y
Y' : CochainComplex C ℤ
hY' : Y'.IsStrictlyGE a
g : X ⟶ Y'
s : Y ⟶ Y'
hs : IsIso (Q.map s)
fac : f = Q.map g ≫ inv (Q.map s)
this : IsIso (Q.map (CochainComplex.truncLEMap s b))
⊢ IsIso (Q.map (inv (Y.ιTruncLE b)) ≫ Q.map (CochainComplex.truncLEMap s b))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Localization.SmallShiftedHom

Goal state before:
pp: C : Type u₁
inst✝⁷ : Category.{v₁, u₁} C
D : Type u₂
inst✝⁶ : Category.{v₂, u₂} D
W : MorphismProperty C
M : Type w'
inst✝⁵ : AddMonoid M
inst✝⁴ : HasShift C M
inst✝³ : HasShift D M
L : C ⥤ D
inst✝² : L.IsLocalization W
inst✝¹ : L.CommShift M
X Y : C
inst✝ : HasSmallLocalizedShiftedHom W M X Y
f : X ⟶ Y
⊢ (equiv W L) (mk₀ W 0 ⋯ f) = ShiftedHom.mk₀ 0 ⋯ (L.map f)

Tactic:
dsimp [equiv, mk₀]

Goal state after:
C : Type u₁
inst✝⁷ : Category.{v₁, u₁} C
D : Type u₂
inst✝⁶ : Category.{v₂, u₂} D
W : MorphismProperty C
M : Type w'
inst✝⁵ : AddMonoid M
inst✝⁴ : HasShift C M
inst✝³ : HasShift D M
L : C ⥤ D
inst✝² : L.IsLocalization W
inst✝¹ : L.CommShift M
X Y : C
inst✝ : HasSmallLocalizedShiftedHom W M X Y
f : X ⟶ Y
⊢ (SmallHom.equiv W L) (mk W (ShiftedHom.mk₀ 0 ⋯ f)) ≫ (Functor.commShiftIso L 0).hom.app Y =
    ShiftedHom.mk₀ 0 ⋯ (L.map f)
Module: Mathlib.Algebra.Homology.HomologySequenceLemmas

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
i : ι
h₁ : Epi (homologyMap φ.τ₁ i)
h₂ : IsIso (homologyMap φ.τ₂ i)
h₃ : ∀ (j : ι), c.Rel i j → IsIso (homologyMap φ.τ₁ j)
h₄ : ∀ (j : ι), c.Rel i j → Mono (homologyMap φ.τ₂ j)
j : ι
hij : c.Rel i j
this : IsIso (homologyMap φ.τ₁ j)
⊢ Mono (homologyMap φ.τ₁ j)

Tactic:
infer_instance

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

Goal state before:
pp: C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
i : ι
h₁ : Epi (homologyMap φ.τ₁ i)
h₂ : IsIso (homologyMap φ.τ₂ i)
h₃ : ∀ (j : ι), c.Rel i j → IsIso (homologyMap φ.τ₁ j)
h₄ : ∀ (j : ι), c.Rel i j → Mono (homologyMap φ.τ₂ j)
this✝ : Mono (homologyMap φ.τ₃ i)
j : ι
hij : c.Rel i j
this : IsIso (homologyMap φ.τ₁ j)
⊢ Epi (homologyMap φ.τ₁ j)

Tactic:
infer_instance

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

Goal state before:
pp: case h₁
C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
h₁ : QuasiIso φ.τ₁
h₂ : QuasiIso φ.τ₂
i : ι
⊢ Epi (homologyMap φ.τ₁ i)

Tactic:
infer_instance

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

Goal state before:
pp: case h₂
C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
h₁ : QuasiIso φ.τ₁
h₂ : QuasiIso φ.τ₂
i : ι
⊢ IsIso (homologyMap φ.τ₂ i)

Tactic:
infer_instance

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

Goal state before:
pp: case h₃
C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
h₁ : QuasiIso φ.τ₁
h₂ : QuasiIso φ.τ₂
i : ι
⊢ ∀ (j : ι), c.Rel i j → IsIso (homologyMap φ.τ₁ j)

Tactic:
infer_instance

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

Goal state before:
pp: case h₄
C : Type u_1
ι : Type u_2
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
c : ComplexShape ι
S₁ S₂ : ShortComplex (HomologicalComplex C c)
φ : S₁ ⟶ S₂
hS₁ : S₁.ShortExact
hS₂ : S₂.ShortExact
h₁ : QuasiIso φ.τ₁
h₂ : QuasiIso φ.τ₂
i : ι
⊢ ∀ (j : ι), c.Rel i j → Mono (homologyMap φ.τ₂ j)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.Basic

Goal state before:
pp: C : Type u
inst✝² : Category.{v, u} C
inst✝¹ : Abelian C
inst✝ : HasDerivedCategory C
⊢ ∀ (X Y : C) (n : ℤ),
    0 ≤ n →
      Small.{w, w} ((singleFunctor C 0).obj X ⟶ (shiftFunctor (DerivedCategory C) n).obj ((singleFunctor C 0).obj Y))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₀
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
⊢ Epi (φ.app 0)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₁
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
⊢ Mono (φ.app 1)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₃
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
⊢ Mono (φ.app 3)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₀
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
this : Mono (app' φ 2 ⋯)
⊢ Epi (φ.app 1)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₂
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
this : Mono (app' φ 2 ⋯)
⊢ Epi (φ.app 3)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: case h₃
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 4
hR₁ : R₁.Exact
hR₂ : R₂.Exact
φ : R₁ ⟶ R₂
h₀ : Epi (φ.app 0)
h₁ : IsIso (φ.app 1)
h₃ : IsIso (φ.app 3)
h₄ : Mono (φ.app 4)
this : Mono (app' φ 2 ⋯)
⊢ Mono (φ.app 4)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.ExtClass

Goal state before:
pp: C : Type u
inst✝² : Category.{v, u} C
inst✝¹ : Abelian C
inst✝ : HasExt C
S : ShortComplex C
hS : S.ShortExact
⊢ HasSmallLocalizedShiftedHom W ℤ ((CochainComplex.singleFunctor C 0).obj S.X₃)
    ((CochainComplex.singleFunctor C 0).obj S.X₁)

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.ExtClass

Goal state before:
pp: C : Type u
inst✝² : Category.{v, u} C
inst✝¹ : Abelian C
inst✝ : HasExt C
S : ShortComplex C
hS : S.ShortExact
⊢ HasSmallLocalizedHom W ((CochainComplex.singleFunctor C 0).obj S.X₃) ((CochainComplex.singleFunctor C 0).obj S.X₃)

Tactic:
apply Localization.hasSmallLocalizedHom_of_hasSmallLocalizedShiftedHom₀ (M := ℤ)

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.ExtClass

Goal state before:
pp: C : Type u
inst✝² : Category.{v, u} C
inst✝¹ : Abelian C
inst✝ : HasExt C
S : ShortComplex C
hS : S.ShortExact
⊢ HasSmallLocalizedHom W (S.map (CochainComplex.singleFunctor C 0)).X₃
    (CochainComplex.mappingCone (S.map (CochainComplex.singleFunctor C 0)).f)

Tactic:
rw [Localization.hasSmallLocalizedHom_iff_target W (S').X₃ qis hqis]
  dsimp
  apply Localization.hasSmallLocalizedHom_of_hasSmallLocalizedShiftedHom₀ (M := ℤ)

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.ExtClass

Goal state before:
pp: C : Type u
inst✝² : Category.{v, u} C
inst✝¹ : Abelian C
inst✝ : HasExt C
S : ShortComplex C
hS : S.ShortExact
⊢ HasSmallLocalizedShiftedHom W ℤ (S.map (CochainComplex.singleFunctor C 0)).X₃
    (S.map (CochainComplex.singleFunctor C 0)).X₁

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 2
φ : R₁ ⟶ R₂
hR₁ : R₁.map' 0 2 mono_of_epi_of_mono_of_mono'._proof_2 mono_of_epi_of_epi_mono'._proof_1 = 0
hR₁' : Epi (R₁.map' 1 2 mono_of_epi_of_mono_of_mono'._proof_6 mono_of_epi_of_epi_mono'._proof_1)
hR₂ : R₂.Exact
h₀ : Epi (app' φ 0 mono_of_epi_of_mono_of_mono'._proof_2)
h₁ : Mono (app' φ 1 mono_of_epi_of_mono_of_mono'._proof_6)
ψ : mk₃ (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯) 0 ⟶ mk₃ (R₂.map' 0 1 ⋯ ⋯) (R₂.map' 1 2 ⋯ ⋯) 0 :=
  homMk₃ (app' φ 0 ⋯) (app' φ 1 ⋯) (app' φ 2 ⋯) (𝟙 ((mk₃ (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯) 0).obj' 3 _proof_300✝)) ⋯ ⋯
    ⋯
⊢ Mono (𝟙 (Precomp.obj (mk₂ (R₁.map (homOfLE ⋯)) 0) (R₁.obj 0) 3))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.Algebra.Homology.DerivedCategory.Ext.ExtClass

Goal state before:
pp: C : Type u
inst✝³ : Category.{v, u} C
inst✝² : Abelian C
inst✝¹ : HasExt C
S : ShortComplex C
hS : S.ShortExact
inst✝ : HasDerivedCategory C
⊢ hS.extClass.hom = hS.singleδ

Tactic:
by
  change SmallShiftedHom.equiv W Q hS.extClass = _
  dsimp [extClass, SmallShiftedHom.equiv]
  erw [SmallHom.equiv_comp]
  rw [SmallHom.equiv_mkInv, SmallHom.equiv_mk]
  dsimp [-Q_obj_single_obj, singleδ, triangleOfSESδ]
  rw [Category.assoc, Category.assoc, Category.assoc,
    singleFunctorsPostcompQIso_hom_hom, singleFunctorsPostcompQIso_inv_hom,
    NatTrans.id_app, Category.id_comp, NatTrans.id_app]
  simp only [SingleFunctors.postcomp, Functor.comp_obj]
  unfold CochainComplex.singleFunctors
  rw [Functor.map_id, Category.comp_id]
  rfl

Goal state after:
Module: Mathlib.CategoryTheory.Shift.Opposite

Goal state before:
pp: C : Type u_1
inst✝³ : Category.{v_1, u_1} C
A : Type u_2
inst✝² : AddMonoid A
inst✝¹ : HasShift C A
inst✝ : HasZeroObject C
⊢ HasZeroObject Cᵒᵖ

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Shift.Opposite

Goal state before:
pp: C : Type u_1
inst✝⁴ : Category.{v_1, u_1} C
A : Type u_2
inst✝³ : AddMonoid A
inst✝² : HasShift C A
inst✝¹ : Preadditive C
n : A
inst✝ : (shiftFunctor C n).Additive
⊢ (shiftFunctor C n).op.Additive

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 2
φ : R₁ ⟶ R₂
hR₁ : R₁.Exact
hR₂ : R₂.map' 0 2 mono_of_epi_of_mono_of_mono'._proof_2 mono_of_epi_of_epi_mono'._proof_1 = 0
hR₂' : Mono (R₂.map' 0 1 mono_of_epi_of_mono_of_mono'._proof_9 mono_of_epi_of_mono_of_mono'._proof_6)
h₀ : Epi (app' φ 1 mono_of_epi_of_mono_of_mono'._proof_6)
h₁ : Mono (app' φ 2 mono_of_epi_of_epi_mono'._proof_1)
ψ : mk₃ 0 (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯) ⟶ mk₃ 0 (R₂.map' 0 1 ⋯ ⋯) (R₂.map' 1 2 ⋯ ⋯) :=
  homMk₃ (𝟙 ((mk₃ 0 (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯)).obj' 0 _proof_297✝)) (app' φ 0 ⋯) (app' φ 1 ⋯) (app' φ 2 ⋯) ⋯ ⋯
    ⋯
⊢ Epi (𝟙 (R₁.obj 0))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Abelian.DiagramLemmas.Four

Goal state before:
pp: C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
R₁ R₂ : ComposableArrows C 2
φ : R₁ ⟶ R₂
hR₁ : R₁.Exact
hR₂' : Mono (R₂.map' 0 1 mono_of_epi_of_mono_of_mono'._proof_9 mono_of_epi_of_mono_of_mono'._proof_6)
h₀ : Mono (app' φ 0 mono_of_epi_of_mono_of_mono'._proof_2)
h₁ : Mono (app' φ 2 mono_of_epi_of_epi_mono'._proof_1)
ψ : mk₃ 0 (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯) ⟶ mk₃ 0 (R₂.map' 0 1 ⋯ ⋯) (R₂.map' 1 2 ⋯ ⋯) :=
  homMk₃ (𝟙 ((mk₃ 0 (R₁.map' 0 1 ⋯ ⋯) (R₁.map' 1 2 ⋯ ⋯)).obj' 0 _proof_297✝)) (app' φ 0 ⋯) (app' φ 1 ⋯) (app' φ 2 ⋯) ⋯ ⋯
    ⋯
⊢ Epi (𝟙 ((mk₃ 0 (R₁.map (homOfLE ⋯)) (R₁.map (homOfLE ⋯))).obj 0))

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Shift.Opposite

Goal state before:
pp: C : Type u_1
D : Type u_2
inst✝⁷ : Category.{v_1, u_1} C
inst✝⁶ : Category.{v_2, u_2} D
A : Type u_3
inst✝⁵ : AddMonoid A
inst✝⁴ : HasShift C A
inst✝³ : HasShift D A
F : C ⥤ D
G : D ⥤ C
adj : F ⊣ G
inst✝² : F.CommShift A
inst✝¹ : G.CommShift A
inst✝ : adj.CommShift A
⊢ NatTrans.CommShift
    ((NatTrans.OppositeShift.natIsoId D A).hom ≫
      OppositeShift.natTrans A adj.counit ≫ (NatTrans.OppositeShift.natIsoComp A G F).hom)
    A

Tactic:
infer_instance

Goal state after:
Module: Mathlib.CategoryTheory.Shift.Opposite

Goal state before:
pp: C : Type u_1
D : Type u_2
inst✝⁷ : Category.{v_1, u_1} C
inst✝⁶ : Category.{v_2, u_2} D
A : Type u_3
inst✝⁵ : AddMonoid A
inst✝⁴ : HasShift C A
inst✝³ : HasShift D A
F : C ⥤ D
G : D ⥤ C
adj : F ⊣ G
inst✝² : F.CommShift A
inst✝¹ : G.CommShift A
inst✝ : adj.CommShift A
⊢ NatTrans.CommShift
    ((NatTrans.OppositeShift.natIsoComp A F G).inv ≫
      OppositeShift.natTrans A adj.unit ≫ (NatTrans.OppositeShift.natIsoId C A).inv)
    A

Tactic:
infer_instance

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

Goal state before:
pp: case h₀
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
S : ShortComplex (CochainComplex C ℤ)
hS : S.ShortExact
n : ℤ
φ : ((homologyFunctor C (up ℤ) 0).homologySequenceComposableArrows₅ (triangleh S.f) n (n + 1) ⋯).δlast ⟶
  (composableArrows₅ hS n (n + 1) ⋯).δlast :=
  homMk₄ ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₂)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₃ ≫
      HomologicalComplex.homologyMap (descShortComplex S) n)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₂) ⋯ ⋯ ⋯ ⋯
⊢ Epi ((homologyFunctorFactors C (up ℤ) n).hom.app S.X₁)

Tactic:
infer_instance

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

Goal state before:
pp: case h₁
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
S : ShortComplex (CochainComplex C ℤ)
hS : S.ShortExact
n : ℤ
φ : ((homologyFunctor C (up ℤ) 0).homologySequenceComposableArrows₅ (triangleh S.f) n (n + 1) ⋯).δlast ⟶
  (composableArrows₅ hS n (n + 1) ⋯).δlast :=
  homMk₄ ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₂)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₃ ≫
      HomologicalComplex.homologyMap (descShortComplex S) n)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₂) ⋯ ⋯ ⋯ ⋯
⊢ IsIso ((homologyFunctorFactors C (up ℤ) n).hom.app S.X₂)

Tactic:
infer_instance

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

Goal state before:
pp: case h₃
C : Type u_1
inst✝¹ : Category.{v_1, u_1} C
inst✝ : Abelian C
S : ShortComplex (CochainComplex C ℤ)
hS : S.ShortExact
n : ℤ
φ : ((homologyFunctor C (up ℤ) 0).homologySequenceComposableArrows₅ (triangleh S.f) n (n + 1) ⋯).δlast ⟶
  (composableArrows₅ hS n (n + 1) ⋯).δlast :=
  homMk₄ ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₂)
    ((homologyFunctorFactors C (up ℤ) n).hom.app (triangle S.f).obj₃ ≫
      HomologicalComplex.homologyMap (descShortComplex S) n)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₁)
    ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app (triangle S.f).obj₂) ⋯ ⋯ ⋯ ⋯
⊢ IsIso ((homologyFunctorFactors C (up ℤ) (n + 1)).hom.app S.X₁)

Tactic:
infer_instance

Goal state after: