Theorem LowerSetTopology.isClosed_iff_isUpper

Modification history

2023-09-24 19:47
Mathlib/Topology/Order/UpperLowerSetTopology.lean
refactor(Topology/Order): Rename order topologies (#7310) …
Deleted LowerSetTopology.isClosed_iff_isUpperView on Github →
2023-08-01 18:11
Mathlib/Topology/Order/UpperLowerSetTopology.lean
feat(Topology/Order/UpperLowerSetTopology): Introduce the Upper Set (or Alexandrov) topology and the Lower Set topology (#5672) …
Added LowerSetTopology.isClosed_iff_isUpperView on Github →