fact: Definition abses_pullback_morphism_corec_beta `{Funext} {A B X Y : AbGroup@{u}} {E : AbSES B A} {F : AbSES Y X} (f : AbSESMorphism E F) : f = absesmorphism_compose (abses_pullback_morphism F (component3 f)) (abses_pullback_morphism_corec f).
imports: Basics Types HSet Limits.Pullback WildCat Pointed.Core Homotopy.ExactSequence Modalities.ReflectiveSubuniverse AbGroups.AbelianGroup AbGroups.AbPullback AbGroups.Biproduct AbSES.Core AbSES.DirectSum