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Theorem mem_nhds_within_subtype

Modification history

2020-08-05 09:09
src/topology/continuous_on.lean
refactor(*): add a notation for `nhds_within` (#3683) …
Modified mem_nhds_within_subtypeView on Github →
2019-10-08 13:51
src/topology/continuous_on.lean
refactor(topology/continuous_on): move continuous_{on,within_at} to own file (#1516) …
Modified mem_nhds_within_subtypeView on Github →
2019-03-03 19:05
src/topology/basic.lean
chore(topology): Splits topology.basic and topology.continuity (#785) …
Modified mem_nhds_within_subtypeView on Github →
2019-02-08 09:28
src/topology/basic.lean
feat (analysis/topology/topological_space): properties of nhds, nhds_within
Added mem_nhds_within_subtypeView on Github →