{B A : AbGroup@{u}} {E F G : AbSES B A} (p : E $-> F) (q : F $-> G) : E $-> G := (q.
Require Import Basics Types Truncations.Core. Require Import HSet WildCat. Require Import Groups.QuotientGroup Groups.ShortExactSequence. Require Import AbelianGroup AbGroups.Biproduct AbHom. Require Import Homotopy.ExactSequence Pointed. Require Import Modalities.ReflectiveSubuniverse.