Theorem map_extChartAt_nhdsWithin_eq_image
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 map_extChartAt_nhdsWithin_eq_imageView on Github →