Documentation

Mathlib.Algebra.Homology.Embedding.ExtendHomology

Homology of the extension of an homological complex #

Given an embedding e : c.Embedding c' and K : HomologicalComplex C c, we shall compute the homology of K.extend e. In degrees that are not in the image of e.f, the homology is obviously zero. When e.f j = j, we shall construct an isomorphism (K.extend e).homology j' ≅ K.homology j (TODO).

theorem HomologicalComplex.extend.comp_d_eq_zero_iff {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {j k : ι} {j' k' : ι'} (hj' : e.f j = j') (hk : c.next j = k) (hk' : c'.next j' = k') ⦃W : C (φ : W K.X j) :
CategoryTheory.CategoryStruct.comp φ (K.d j k) = 0 CategoryTheory.CategoryStruct.comp φ (CategoryTheory.CategoryStruct.comp (K.extendXIso e hj').inv ((K.extend e).d j' k')) = 0
theorem HomologicalComplex.extend.d_comp_eq_zero_iff {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j : ι} {i' j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') ⦃W : C (φ : K.X j W) :
CategoryTheory.CategoryStruct.comp (K.d i j) φ = 0 CategoryTheory.CategoryStruct.comp ((K.extend e).d i' j') (CategoryTheory.CategoryStruct.comp (K.extendXIso e hj').hom φ) = 0
noncomputable def HomologicalComplex.extend.leftHomologyData.kernelFork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {j k : ι} {j' k' : ι'} (hj' : e.f j = j') (hk : c.next j = k) (hk' : c'.next j' = k') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) :
CategoryTheory.Limits.KernelFork ((K.extend e).d j' k')

The kernel fork of (K.extend e).d j' k' that is deduced from a kernel fork of K.d j k .

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    noncomputable def HomologicalComplex.extend.leftHomologyData.isLimitKernelFork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {j k : ι} {j' k' : ι'} (hj' : e.f j = j') (hk : c.next j = k) (hk' : c'.next j' = k') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) (hcone : CategoryTheory.Limits.IsLimit cone) :

    The limit kernel fork of (K.extend e).d j' k' that is deduced from a limit kernel fork of K.d j k .

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      theorem HomologicalComplex.extend.leftHomologyData.lift_d_comp_eq_zero_iff' {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) (hcone : CategoryTheory.Limits.IsLimit cone) ⦃W : C (f' : K.X i cone.pt) (hf' : CategoryTheory.CategoryStruct.comp f' (CategoryTheory.Limits.Fork.ι cone) = K.d i j) (f'' : (K.extend e).X i' cone.pt) (hf'' : CategoryTheory.CategoryStruct.comp f'' (CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.Fork.ι cone) (K.extendXIso e hj').inv) = (K.extend e).d i' j') (φ : cone.pt W) :

      Auxiliary lemma for lift_d_comp_eq_zero_iff.

      theorem HomologicalComplex.extend.leftHomologyData.lift_d_comp_eq_zero_iff {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) (hcone : CategoryTheory.Limits.IsLimit cone) ⦃W : C (φ : cone.pt W) :
      noncomputable def HomologicalComplex.extend.leftHomologyData.cokernelCofork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) (hcone : CategoryTheory.Limits.IsLimit cone) (cocone : CategoryTheory.Limits.CokernelCofork (hcone.lift (CategoryTheory.Limits.KernelFork.ofι (K.d i j) ))) :

      Auxiliary definition for extend.leftHomologyData.

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        noncomputable def HomologicalComplex.extend.leftHomologyData.isColimitCokernelCofork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cone : CategoryTheory.Limits.KernelFork (K.d j k)) (hcone : CategoryTheory.Limits.IsLimit cone) (cocone : CategoryTheory.Limits.CokernelCofork (hcone.lift (CategoryTheory.Limits.KernelFork.ofι (K.d i j) ))) (hcocone : CategoryTheory.Limits.IsColimit cocone) :

        Auxiliary definition for extend.leftHomologyData.

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          noncomputable def HomologicalComplex.extend.leftHomologyData {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).LeftHomologyData) :
          ((K.extend e).sc' i' j' k').LeftHomologyData

          The left homology data of (K.extend e).sc' i' j' k' that is deduced from a left homology data of K.sc' i j k.

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            @[simp]
            theorem HomologicalComplex.extend.leftHomologyData_K {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).LeftHomologyData) :
            (HomologicalComplex.extend.leftHomologyData K e hj' hi hi' hk hk' h).K = h.K
            @[simp]
            theorem HomologicalComplex.extend.leftHomologyData_H {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).LeftHomologyData) :
            (HomologicalComplex.extend.leftHomologyData K e hj' hi hi' hk hk' h).H = h.H
            @[simp]
            theorem HomologicalComplex.extend.leftHomologyData_π {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).LeftHomologyData) :
            (HomologicalComplex.extend.leftHomologyData K e hj' hi hi' hk hk' h) = h
            @[simp]
            theorem HomologicalComplex.extend.leftHomologyData_i {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).LeftHomologyData) :
            (HomologicalComplex.extend.leftHomologyData K e hj' hi hi' hk hk' h).i = CategoryTheory.CategoryStruct.comp h.i (K.extendXIso e hj').inv
            noncomputable def HomologicalComplex.extend.rightHomologyData.cokernelCofork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j : ι} {i' j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) :

            The cokernel cofork of (K.extend e).d i' j' that is deduced from a cokernel cofork of K.d i j.

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              noncomputable def HomologicalComplex.extend.rightHomologyData.isColimitCokernelCofork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j : ι} {i' j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) (hcocone : CategoryTheory.Limits.IsColimit cocone) :

              The colimit cokernel cofork of (K.extend e).d i' j' that is deduced from a colimit cokernel cofork of K.d i j.

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                theorem HomologicalComplex.extend.rightHomologyData.d_comp_desc_eq_zero_iff' {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' k' : ι'} (hj' : e.f j = j') (hk : c.next j = k) (hk' : c'.next j' = k') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) (hcocone : CategoryTheory.Limits.IsColimit cocone) ⦃W : C (f' : cocone.pt K.X k) (hf' : CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.Cofork.π cocone) f' = K.d j k) (f'' : cocone.pt (K.extend e).X k') (hf'' : CategoryTheory.CategoryStruct.comp (K.extendXIso e hj').hom (CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.Cofork.π cocone) f'') = (K.extend e).d j' k') (φ : W cocone.pt) :
                theorem HomologicalComplex.extend.rightHomologyData.d_comp_desc_eq_zero_iff {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) (hcocone : CategoryTheory.Limits.IsColimit cocone) ⦃W : C (φ : W cocone.pt) :
                noncomputable def HomologicalComplex.extend.rightHomologyData.kernelFork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) (hcocone : CategoryTheory.Limits.IsColimit cocone) (cone : CategoryTheory.Limits.KernelFork (hcocone.desc (CategoryTheory.Limits.CokernelCofork.ofπ (K.d j k) ))) :

                Auxiliary definition for extend.rightHomologyData.

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                  noncomputable def HomologicalComplex.extend.rightHomologyData.isLimitKernelFork {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (cocone : CategoryTheory.Limits.CokernelCofork (K.d i j)) (hcocone : CategoryTheory.Limits.IsColimit cocone) (cone : CategoryTheory.Limits.KernelFork (hcocone.desc (CategoryTheory.Limits.CokernelCofork.ofπ (K.d j k) ))) (hcone : CategoryTheory.Limits.IsLimit cone) :

                  Auxiliary definition for extend.rightHomologyData.

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                    noncomputable def HomologicalComplex.extend.rightHomologyData {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).RightHomologyData) :
                    ((K.extend e).sc' i' j' k').RightHomologyData

                    The right homology data of (K.extend e).sc' i' j' k' that is deduced from a right homology data of K.sc' i j k.

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                      @[simp]
                      theorem HomologicalComplex.extend.rightHomologyData_Q {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).RightHomologyData) :
                      (HomologicalComplex.extend.rightHomologyData K e hj' hi hi' hk hk' h).Q = h.Q
                      @[simp]
                      theorem HomologicalComplex.extend.rightHomologyData_H {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).RightHomologyData) :
                      (HomologicalComplex.extend.rightHomologyData K e hj' hi hi' hk hk' h).H = h.H
                      @[simp]
                      theorem HomologicalComplex.extend.rightHomologyData_ι {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).RightHomologyData) :
                      (HomologicalComplex.extend.rightHomologyData K e hj' hi hi' hk hk' h) = h
                      @[simp]
                      theorem HomologicalComplex.extend.rightHomologyData_p {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).RightHomologyData) :
                      (HomologicalComplex.extend.rightHomologyData K e hj' hi hi' hk hk' h).p = CategoryTheory.CategoryStruct.comp (K.extendXIso e hj').hom h.p
                      noncomputable def HomologicalComplex.extend.homologyData {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).HomologyData) :
                      ((K.extend e).sc' i' j' k').HomologyData

                      The homology data of (K.extend e).sc' i' j' k' that is deduced from a homology data of K.sc' i j k.

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                        @[simp]
                        theorem HomologicalComplex.extend.homologyData_right {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).HomologyData) :
                        (HomologicalComplex.extend.homologyData K e hj' hi hi' hk hk' h).right = HomologicalComplex.extend.rightHomologyData K e hj' hi hi' hk hk' h.right
                        @[simp]
                        theorem HomologicalComplex.extend.homologyData_left {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).HomologyData) :
                        (HomologicalComplex.extend.homologyData K e hj' hi hi' hk hk' h).left = HomologicalComplex.extend.leftHomologyData K e hj' hi hi' hk hk' h.left
                        @[simp]
                        theorem HomologicalComplex.extend.homologyData_iso {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {i' j' k' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hi' : c'.prev j' = i') (hk : c.next j = k) (hk' : c'.next j' = k') (h : (K.sc' i j k).HomologyData) :
                        (HomologicalComplex.extend.homologyData K e hj' hi hi' hk hk' h).iso = h.iso
                        noncomputable def HomologicalComplex.extend.homologyData' {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                        ((K.extend e).sc j').HomologyData

                        The homology data of (K.extend e).sc j' that is deduced from a homology data of K.sc' i j k.

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                        Instances For
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_right_H {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).right.H = h.right.H
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_left_i {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).left.i = CategoryTheory.CategoryStruct.comp h.left.i (K.extendXIso e hj').inv
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_left_K {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).left.K = h.left.K
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_right_Q {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).right.Q = h.right.Q
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_right_ι {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).right = h.right
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_iso {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).iso = h.iso
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_left_H {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).left.H = h.left.H
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_right_p {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).right.p = CategoryTheory.CategoryStruct.comp (K.extendXIso e hj').hom h.right.p
                          @[simp]
                          theorem HomologicalComplex.extend.homologyData'_left_π {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {i j k : ι} {j' : ι'} (hj' : e.f j = j') (hi : c.prev j = i) (hk : c.next j = k) (h : (K.sc' i j k).HomologyData) :
                          (HomologicalComplex.extend.homologyData' K e hj' hi hk h).left = h.left
                          theorem HomologicalComplex.extend.hasHomology {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') {j : ι} {j' : ι'} (hj' : e.f j = j') [K.HasHomology j] :
                          (K.extend e).HasHomology j'
                          instance HomologicalComplex.extend.instHasHomologyF {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') (j : ι) [K.HasHomology j] :
                          (K.extend e).HasHomology (e.f j)
                          instance HomologicalComplex.extend.instHasHomology {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3} [CategoryTheory.Category.{u_4, u_3} C] [CategoryTheory.Limits.HasZeroMorphisms C] [CategoryTheory.Limits.HasZeroObject C] (K : HomologicalComplex C c) (e : c.Embedding c') [∀ (j : ι), K.HasHomology j] (j' : ι') :
                          (K.extend e).HasHomology j'