Theorem Topology.CWComplex.isClosed_of_isClosed_inter_openCell_or_isClosed_inter_closedCell

Modification history

2025-03-05 17:02
Mathlib/Topology/CWComplex/Classical/Basic.lean
feat: additional basic lemmas about CW complexes (#20287) …
Added Topology.CWComplex.isClosed_of_isClosed_inter_openCell_or_isClosed_inter_closedCellView on Github →