fact: Definition ab_cokernel_embedding {G : Group} {A : AbGroup} (f : G $-> A) `{IsEmbedding f} : AbGroup := QuotientAbGroup _ (grp_image_embedding f).
imports: Basics Types Classes.interfaces.canonical_names (Zero, zero) Classes.interfaces.abstract_algebra (IsAbGroup(..), abgroup_group, abgroup_commutative) Algebra.Groups.Group Algebra.Groups.Subgroup Algebra.Groups.QuotientGroup WildCat