Theorem TopologicalSpace.NonemptyCompacts.isClosed_subsets_of_isClosed

Modification history

2025-11-20 20:06
Mathlib/Topology/UniformSpace/Closeds.lean
feat(Topology/UniformSpace): define the Hausdorff uniformity (#31031) …
Added TopologicalSpace.NonemptyCompacts.isClosed_subsets_of_isClosedView on Github →