Definition get_und_ver_cat_id {C: predoublecategory_hor_sq} (c : (und_ver_cat_ob C)) : und_ver_cat_ob_mor C c c := make_und_ver_cat_ob_mor (hor_sq_identity (pr22 c)).
Require Import UniMath.Foundations.Propositions. Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.MoreFoundations.Notations. Require Import UniMath.CategoryTheory.Core.Prelude. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence.