Theorem frontier_union_subset

Modification history

2024-01-24 10:41
Mathlib/Topology/Basic.lean
chore(Topology/Basic): rename variables (#9956) …
Modified frontier_union_subsetView on Github →
2023-01-26 08:19
Mathlib/Topology/Basic.lean
feat: port Topology.Basic (#1826)
Added frontier_union_subsetView on Github →