`{Univalence} {B A G : AbGroup} (E : AbSES B A) : ab_hom A G ->* AbSES B G. Proof. srapply Build_pMap. 1: exact (fun g => abses_pushout g E). apply abses_pushout_const. Defined.
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.