fact: Definition z_iso_between_Coequalizer {C : category} {x y : C} {f g : x --> y} (c₁ c₂ : Coequalizer f g) : z_iso c₁ c₂.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Epis UniMath.CategoryTheory.Limits.BinCoproducts UniMath.CategoryTheory.Retracts