Theorem Topology.RelCWComplex.cellFrontier_union_openCell_eq_closedCell

Modification history

2025-02-08 15:33
Mathlib/Topology/CWComplex/Classical/Basic.lean
feat: definition and basic lemmas about CW-complexes (#19760) …
Added Topology.RelCWComplex.cellFrontier_union_openCell_eq_closedCellView on Github →