fact: Definition mor_to_end (w' : wedge) : w' --> w := pr1 (Hw w').
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.OppositeCategory.Core UniMath.CategoryTheory.PrecategoryBinProduct UniMath.CategoryTheory.Limits.Products UniMath.CategoryTheory.Limits.Equalizers