fact: Definition make_isCokernel {x y z : C} (f : x --> y) (g : y --> z) (H1 : f · g = ZeroArrow Z x z) (H2 : ∏ (w : C) (h : y --> w) (H' : f · h = ZeroArrow Z x w), ∃! ψ : z --> w, g · ψ = h) : isCokernel f g H1.
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