OAI/Geometry/SurfaceImmersion/Whitney/RegularPairedArcProjection.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Interior regularity of both source sheets, together with the actual endpoint germs, makes the first projection of the whole arc regular.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.regular_paired_arc_projection line 15