∀ {C : Type u_1} [inst : CategoryTheory.Category.{v_1, u_1} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {ι : Type u_2} {c : ComplexShape ι} {K : HomologicalComplex C c} (i : ι) [inst_2 : K.HasHomology i],
  CategoryTheory.CategoryStruct.comp (K.homologyπ i) (K.homologyι i) =
    CategoryTheory.CategoryStruct.comp (K.iCycles i) (K.pOpcycles i)