Theorem PartialHomeomorph.isOpen_extend_target

Modification history

2025-02-04 15:13
Mathlib/Geometry/Manifold/IsManifold/Basic.lean
chore(Geometry/Manifold/IsManifold): split out material on extended charts (#21219) …
Modified PartialHomeomorph.isOpen_extend_targetView on Github →
2023-12-19 12:55
Mathlib/Geometry/Manifold/SmoothManifoldWithCorners.lean
feat: interior and boundary of a manifold (#8624) …
Added PartialHomeomorph.isOpen_extend_targetView on Github →