∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  (S : CategoryTheory.ShortComplex C) (hf : S.f = 0) [inst_2 : S.HasHomology],
  CategoryTheory.CategoryStruct.comp S.homologyπ (S.asIsoHomologyπ hf).inv = CategoryTheory.CategoryStruct.id S.cycles