fact: Definition CokernelArrow {x y : C} {f : x --> y} (CK : Cokernel f) : C⟦y, CK⟧ := pr2 (pr1 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