fact: Definition abses_path_compose_beta `{Univalence} {B A : AbGroup@{u}} {E F G : AbSES B A} (p : E = F) (q : F = G) : p @ q = equiv_path_abses_iso (abses_path_data_compose (equiv_path_abses_iso^-1 p) (equiv_path_abses_iso^-1 q)).
imports: Basics Types Truncations.Core HSet WildCat Groups.QuotientGroup Groups.ShortExactSequence AbelianGroup AbGroups.Biproduct AbHom Homotopy.ExactSequence Pointed Modalities.ReflectiveSubuniverse