fact: Definition ab_cokernel_embedding_rec {G: Group} {A B : AbGroup} (f : G $-> A) `{IsEmbedding f} (h : A $-> B) (p : grp_homo_compose h f $== grp_homo_const) : ab_cokernel_embedding f $-> B.
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