`{Univalence} {A A' B : AbGroup} (f : A $-> A') : abses_pushout f (point (AbSES B A)) = pt := equiv_path_abses_iso (' f).
Require Import Basics Types Truncations.Core. Require Import WildCat Pointed.Core Homotopy.ExactSequence HIT.epi. Require Import Modalities.ReflectiveSubuniverse. Require Import AbelianGroup AbPushout AbHom AbGroups.Biproduct. Require Import AbSES.Core AbSES.DirectSum.