∀ {ι : Type u_1} {ι₁ : Type u_2} {ι₂ : Type u_3} {c : ComplexShape ι} {c₁ : ComplexShape ι₁} {c₂ : ComplexShape ι₂}
  {C : Type u_4} [inst : CategoryTheory.Category.{v_1, u_4} C] [inst_1 : CategoryTheory.Abelian C]
  (K : HomologicalComplex C c) {e₁ : c₁.Embedding c} {e₂ : c₂.Embedding c} [inst_2 : e₁.IsTruncLE]
  [inst_3 : e₂.IsTruncGE] (ac : e₁.AreComplementary e₂), QuasiIso (K.shortComplexTruncLEX₃ToTruncGE ac)