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Theorem open_add_subgroup.is_open_of_open_add_subgroup

Modification history

2019-08-21 05:42
src/topology/algebra/open_subgroup.lean
refactor(*): rewrite `to_additive` attribute (#1345) …
Deleted open_add_subgroup.is_open_of_open_add_subgroupView on Github →
2019-05-31 20:59
src/topology/algebra/open_subgroup.lean
feat(topology/algebra/open_subgroup): basics on open subgroups (#1067) …
Added open_add_subgroup.is_open_of_open_add_subgroupView on Github →