`{Univalence} {A A' B : AbGroup} {E : AbSES B A'} {F : AbSES B A} (f : AbSESMorphism E F) (h : component3 f == grp_homo_id) : abses_pushout (component1 f) E = F := equiv_path_abses_iso (' f h).
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.