OAI/Geometry/SurfaceImmersion/Whitney/RegularDoublePointNormalForm.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

A regular transverse double point of the actual surface map has simultaneous smooth source charts and transverse target coordinate planes.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.regular_double_point_normal_form line 14