fact: Definition CokernelofZeroArrow (x y : C) : Cokernel (ZeroArrow Z x y) := make_Cokernel (ZeroArrow Z x y) (identity y) (id_right _) (CokernelOfZeroArrow_isCokernel x y).
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