Theorem Topology.WithLower.isOpen_preimage_ofLower

Modification history

2025-01-07 19:57
Mathlib/Topology/Order/LowerUpperTopology.lean
feat(LowerUpperTopology): add lemmas (#20465) …
Modified Topology.WithLower.isOpen_preimage_ofLowerView on Github →
2023-09-24 19:47
Mathlib/Topology/Order/LowerUpperTopology.lean
refactor(Topology/Order): Rename order topologies (#7310) …
Added Topology.WithLower.isOpen_preimage_ofLowerView on Github →