proposition: Lemma idtoiso_inj (C : category) (H : is_univalent C) (a a' : ob C) (p p' : a = a') : idtoiso p = idtoiso p' -> p = p'.
proof: Proof. apply invmaponpathsincl. apply isinclweq. apply H. Qed.
imports: UniMath.Foundations.PartA UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos