Theorem LowerSetTopology.IsOpen_iff_IsLowerSet

Modification history

2023-09-18 13:50
Mathlib/Topology/Order/UpperLowerSetTopology.lean
fix(Topology/Order/UpperLowerSetTopology): Fix theorem names in UpperLowerSetTopology to match mathlib4 conventions (#6557) …
Deleted LowerSetTopology.IsOpen_iff_IsLowerSetView 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.IsOpen_iff_IsLowerSetView on Github →