Theorem WithLowerTopology.isOpen_preimage_ofLower

Modification history

2023-09-24 19:47
Mathlib/Topology/Order/LowerUpperTopology.lean
refactor(Topology/Order): Rename order topologies (#7310) …
Deleted WithLowerTopology.isOpen_preimage_ofLowerView on Github →
2023-02-11 09:23
Mathlib/Topology/Order/LowerTopology.lean
feat: port Topology.Order.LowerTopology (#2163)
Added WithLowerTopology.isOpen_preimage_ofLowerView on Github →