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Theorem emetric.ball_mem_nhds

Modification history

2021-02-04 21:33
src/topology/metric_space/emetric_space.lean
feat(data/real/ennreal): use notation for ennreal (#6044) …
Modified emetric.ball_mem_nhdsView on Github →
2019-11-12 11:23
src/topology/metric_space/emetric_space.lean
style(*): use notation `𝓝` for `nhds` (#1582) …
Modified emetric.ball_mem_nhdsView on Github →
2019-03-08 08:46
src/topology/metric_space/emetric_space.lean
feat(*): has_mem (set α) (filter α) (#799)
Modified emetric.ball_mem_nhdsView on Github →
2019-01-20 20:42
src/topology/metric_space/emetric_space.lean
feat(topology/emetric_space): basic facts for emetric spaces (#608)
Added emetric.ball_mem_nhdsView on Github →