OAI/Geometry/SurfaceImmersion/Primitive/ActualCrossingPath.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

The admissible crossing path is a unit section of the actual normal plane, and its endpoint pairs positively with both actual pure forms.

  1. theorem OAI.ClosedSurfaceR4.GeometryPreservation.SecondFormFrame.actual_crossing_path line 16