Definition prod_twosided_disp_cat_all_disp_mor_iso (HD₁ : all_disp_mor_iso D₁) (HD₂ : all_disp_mor_iso D₂) : all_disp_mor_iso prod_of_twosided_disp_cat. Proof. intro ; intros. use make_is_iso_prod_of_twosided_disp_cat. - apply HD₁. - apply HD₂. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Discrete.