Lemma is_univalent_eqalg_disp : is_univalent_disp eqalg_disp. Proof. use disp_full_sub_univalent. intros A isT isT'. use impred_isaprop. intro eq. use impred_isaprop. intros α p p'. apply (pr1 A). Qed.
Require Import UniMath.Foundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Total. Require Import UniMath.CategoryTheory.DisplayedCats.Isos. Require Import UniMath.CategoryTheory.DisplayedCats.Univalence. Require Import UniMath.CategoryTheory.DisplayedCats.Constructions. Require Import UniMath.Algebra.Universal.EqAlgebras. Require Import UniMath.CategoryTheory.Categories.Universal_Algebra.Algebras.