fact: Definition abses_pullback_component1_id `{Univalence} {A B B' : AbGroup} {E : AbSES B A} {F : AbSES B' A} (f : AbSESMorphism E F) (h : component1 f == grp_homo_id) : E = abses_pullback (component3 f) F := equiv_path_abses_iso (abses_pullback_component1_id' f h).
imports: Basics Types HSet Limits.Pullback WildCat Pointed.Core Homotopy.ExactSequence Modalities.ReflectiveSubuniverse AbGroups.AbelianGroup AbGroups.AbPullback AbGroups.Biproduct AbSES.Core AbSES.DirectSum