proposition: Lemma setcategory_eq_morphism_pi (C : setcategory) (a b : ob C) (e e': a = b) : idtomor _ _ e = idtomor _ _ e'.
proof: Proof. assert (h : e = e'). apply uip. apply (pr2 C). apply (maponpaths (idtomor _ _ ) h). Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors