OAI/Geometry/SurfaceImmersion/Atlas/SurfaceCompactCoordinateMap.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

A smooth coordinate map regular and injective on a compact surface set is one smooth chart on a neighborhood of that set.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.surface_compact_coordinate_map line 17