proposition: Lemma idtoiso_2_1_inv {C : bicat} {a b : C} {f g : a --> b} (p : f = g) : idtoiso_2_1 _ _ (!p) = inv_of_invertible_2cell (idtoiso_2_1 _ _ p).
proof: Proof. induction p. apply idpath. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Morphisms.Adjunctions UniMath.Bicategories.Core.Univalence