∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  (S : CategoryTheory.ShortComplex C) [inst_2 : S.HasLeftHomology] [inst_3 : CategoryTheory.Limits.HasKernel S.g],
  CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.kernel.lift S.g S.iCycles ⋯)
      (S.liftCycles (CategoryTheory.Limits.kernel.ι S.g) ⋯) =
    CategoryTheory.CategoryStruct.id S.cycles