Definition disp_functor_ff_reflect_disp_iso : z_iso_disp f xx yy. Proof. use make_z_iso_disp. - exact ff. - simple refine (_ ,, _ ,, _). + exact gg. + exact disp_functor_ff_reflect_disp_iso_left. + exact disp_functor_ff_reflect_disp_iso_right. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Prelude. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Isos. Require Import UniMath.CategoryTheory.DisplayedCats.Functors.