fact: Definition CoroofMor2Is {x y : ob C} (CR : Coroof x y) : SOM y CR (CoroofMor2 CR) := pr2 CR.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors