Theorem UpperTopology.isLowerSet_of_isClosed

Modification history

2023-09-24 19:47
Mathlib/Topology/Order/LowerUpperTopology.lean
refactor(Topology/Order): Rename order topologies (#7310) …
Deleted UpperTopology.isLowerSet_of_isClosedView on Github →
2023-07-25 10:57
Mathlib/Topology/Order/LowerUpperTopology.lean
feat(Topology/Order/LowerUpperTopology): Dual the lower topology (#5873) …
Added UpperTopology.isLowerSet_of_isClosedView on Github →