proposition: Lemma isotoid_CONE_idtoiso (M N : CONE F) : ∏ p : M = N, isotoid_CONE (idtoiso p) = p.
proof: Proof. intro p. induction p. apply eq_Cone_eq. apply base_paths_isotoid_CONE. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors