Theorem Topology.RelCWComplex.isClosed_of_disjoint_openCell_or_isClosed_inter_closedCell

Modification history

2025-09-17 11:12
Mathlib/Topology/CWComplex/Classical/Basic.lean
feat: a subcomplex of a classical CW complex is a CW complex (#29177) …
Added Topology.RelCWComplex.isClosed_of_disjoint_openCell_or_isClosed_inter_closedCellView on Github →