∀ {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 j : ι),
  c.next i = j → K.d i j = 0 → ∀ [inst_2 : K.HasHomology i], CategoryTheory.IsIso (K.iCycles i)