Theorem isClosed_biUnion

Modification history

2023-09-05 23:13
Mathlib/Topology/Basic.lean
feat: Alexandrov-discrete spaces (#6962) …
Deleted isClosed_biUnionView on Github →
2023-05-14 07:05
Mathlib/Topology/Basic.lean
chore: Rename to `sSup`/`iSup` (#3938) …
Added isClosed_biUnionView on Github →