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Theorem mem_nhds_within_of_mem_nhds

Modification history

2019-11-12 11:23
src/topology/continuous_on.lean
style(*): use notation `𝓝` for `nhds` (#1582) …
Modified mem_nhds_within_of_mem_nhdsView on Github →
2019-10-17 20:03
src/topology/continuous_on.lean
refactor(topology,calculus): change subset condition for composition (#1549) …
Added mem_nhds_within_of_mem_nhdsView on Github →