Theorem IsOpenMap.preimage_frontier_eq_frontier_preimage

Modification history

2024-01-09 09:25
Mathlib/Topology/Maps.lean
chore(Topology/Maps): rename type variables (#9548) …
Modified IsOpenMap.preimage_frontier_eq_frontier_preimageView on Github →
2023-01-31 12:11
Mathlib/Topology/Maps.lean
feat: port Topology.Maps (#1873)
Added IsOpenMap.preimage_frontier_eq_frontier_preimageView on Github →