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Def open_subgroup

Modification history

2020-06-12 03:49
src/topology/algebra/open_subgroup.lean
refactor(*): fix field names in `linear_map` and `submodule` (#3032) …
Deleted open_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_subgroupView on Github →