fact: Definition CokernelofZeroArrow_iso (x y : C) (CK : Cokernel (ZeroArrow Z x y)) : z_iso y CK := make_z_iso (CokernelArrow CK) (from_Cokernel_to_Cokernel CK (CokernelofZeroArrow x y)) (CokernelofZeroArrow_is_iso CK).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Epis UniMath.CategoryTheory.Limits.Coequalizers UniMath.CategoryTheory.Limits.Zero