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Theorem is_subgroup.mem_norm_comm_iff

Modification history

2021-08-01 17:17
src/deprecated/subgroup.lean
chore(deprecated/*): Make deprecated classes into structures (#8178) …
Modified is_subgroup.mem_norm_comm_iffView on Github →
2020-06-01 23:39
src/deprecated/subgroup.lean
chore(group_theory/sub*): move unbundled submonoids and subgroups to `deprecated` (#2912) …
Modified is_subgroup.mem_norm_comm_iffView on Github →
2020-02-14 00:07
src/group_theory/subgroup.lean
chore(group_theory/sub*) : rename type vars (#1982) …
Modified is_subgroup.mem_norm_comm_iffView on Github →
2018-08-10 07:04
group_theory/subgroup.lean
feat(group_theory/submonoid,subgroup): merge with add_* versions
Modified is_subgroup.mem_norm_comm_iffView on Github →
2018-04-11 13:50
group_theory/subgroup.lean
chore(group_theory): simplify proofs; generalize some theorems
Added is_subgroup.mem_norm_comm_iffView on Github →