Theorem isClopen_biUnion

Modification history

2023-09-05 23:13

Mathlib/Topology/SubsetProperties.lean

feat: Alexandrov-discrete spaces (#6962) …

Deleted isClopen_biUnion View on Github →

2023-08-10 19:52

Mathlib/Topology/SubsetProperties.lean

chore: banish `Type _` and `Sort _` (#6499) …

Modified isClopen_biUnion View on Github →

2023-05-14 07:05

Mathlib/Topology/SubsetProperties.lean

chore: Rename to `sSup`/`iSup` (#3938) …

Added isClopen_biUnion View on Github →