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Theorem is_add_group_hom_sub

Modification history

2019-04-09 13:50
src/algebra/group.lean
refactor(*): rename is_group_hom.mul to map_mul (#911) …
Deleted is_add_group_hom_subView on Github →
2018-10-18 00:33
algebra/group.lean
feat(algebra,group_theory): add various closure properties of subgroup and is_group_hom w.r.t gsmul, prod, sum
Added is_add_group_hom_subView on Github →