fact: Definition abses_path_data {B A : AbGroup@{u}} (E F : AbSES B A) := {phi : GroupHomomorphism E F & (phi $o inclusion _ == inclusion _) * (projection _ == projection _ $o phi)}.
imports: Basics Types Truncations.Core HSet WildCat Groups.QuotientGroup Groups.ShortExactSequence AbelianGroup AbGroups.Biproduct AbHom Homotopy.ExactSequence Pointed Modalities.ReflectiveSubuniverse