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Theorem mem_nhds_iff_exists_Ioo_subset'

Modification history

2020-12-17 13:27
src/topology/algebra/ordered.lean
chore(topology/algebra/ordered): deduplicate (#5399) …
Modified mem_nhds_iff_exists_Ioo_subset'View on Github →
2019-12-04 13:46
src/topology/algebra/ordered.lean
feat(data/set/intervals): more properties of intervals (#1753) …
Added mem_nhds_iff_exists_Ioo_subset'View on Github →