OAI/Geometry/SurfaceImmersion/Whitney/RegularInteriorDoubleArc.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

The smoothed interior of a simple crosscap-connecting double arc has regular projections to both source sheets and a regular common image.

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