Mathlib v3 is deprecated. Go to Mathlib v4

Theorem additive.is_add_subgroup_iff

Modification history

2020-06-01 23:39
src/deprecated/subgroup.lean
chore(group_theory/sub*): move unbundled submonoids and subgroups to `deprecated` (#2912) …
Modified additive.is_add_subgroup_iffView on Github →
2018-08-10 07:04
group_theory/subgroup.lean
feat(group_theory/submonoid,subgroup): merge with add_* versions
Added additive.is_add_subgroup_iffView on Github →