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Theorem is_clopen_bUnion

Modification history

2022-07-13 02:40
src/topology/subset_properties.lean
refactor(topology/subset_properties): reformulate `is_clopen_b{Union,Inter}` in terms of `set.finite` (#15272) …
Modified is_clopen_bUnionView on Github →
2022-01-14 08:37
src/topology/subset_properties.lean
feat(topology/subset_properties): some compactness properties (#11425) …
Modified is_clopen_bUnionView on Github →
2021-05-20 15:24
src/topology/subset_properties.lean
feat(topology): clopens form a topology basis for profinite sets (#7671) …
Added is_clopen_bUnionView on Github →