OAI/Geometry/SurfaceImmersion/Atlas/SurfaceLocalCoordinateMap.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

A smooth surface-to-plane map with invertible derivative is an actual smooth local coordinate chart.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.surface_local_coordinate_map line 16