Definition weq_iso_left_total_of_twosided_disp_cat_eq_help {y : C₂} {xy₁ xy₂ : left_total_of_twosided_disp_cat y} {fg₁ fg₂ : ∑ (f : z_iso (pr1 xy₁) (pr1 xy₂)), iso_twosided_disp f (identity_z_iso _) (pr2 xy₁) (pr2 xy₂)} (p : pr11 fg₁ = pr11 fg₂) (q : pr12 fg₁ = transportb (λ z, _ -->[ z ][ _ ] _) p (pr12 fg₂)) : fg₁ = fg₂.
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.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Isos. Require Import UniMath.CategoryTheory.DisplayedCats.Univalence. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos. Require Import UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence. Section FromIsoTotal. End FromIsoTotal.