Definition isEqualizerUnderIso_uvp_existence : ∑ φ : C ⟦ w, a' ⟧, φ · e' = h := pr1 (pr1 E') · i_a ,, pfq.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.Monics. Require Import UniMath.CategoryTheory.Retracts.