Definition two_sided_disp_cat_weq_disp_cat_inv_left (D : twosided_disp_cat C₁ C₂) : disp_cat_to_twosided_disp_cat (twosided_disp_cat_to_disp_cat D) = D.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.PrecategoryBinProduct.