Definition inv2cell_to_z_iso {a b : B} {f g : hom a b} (α : invertible_2cell f g) : z_iso f g. Proof. use make_z_iso'. - apply α. - apply is_inv2cell_to_is_z_iso. apply property_from_invertible_2cell. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations.