Definition identity_z_iso_disp {C} {D : disp_cat C} {x : C} (xx : D x) : z_iso_disp (identity_z_iso x) xx xx := (_ ,, id_is_z_iso_disp _).
Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.DisplayedCats.Core.