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. induction p. apply idpath. Qed.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations. Require Import UniMath.Bicategories.Core.Unitors. Require Import UniMath.Bicategories.Core.Invertible_2cells. Require Import UniMath.Bicategories.Morphisms.Adjunctions. Require Import UniMath.Bicategories.Core.Univalence.