Definition iso_from_Equalizer_to_Equalizer {y z : C} {f g : y --> z} (E E' : Equalizer f g) : iso E E' := tpair _ _ (isiso_from_Equalizer_to_Equalizer E E').
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.