Theorem frontier_subset_iff_isClosed

Modification history

2025-04-08 01:10
Mathlib/Topology/Basic.lean
chore: split `Topology.Basic` (#23717) …
Modified frontier_subset_iff_isClosedView on Github →
2024-07-14 15:55
Mathlib/Topology/Basic.lean
feat(Topology/LocallyClosed): Define locally closed sets (#14396)
Added frontier_subset_iff_isClosedView on Github →