OAI/Geometry/SurfaceImmersion/Primitive/CompactCrossingNormal.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Turn regularity on a compact disk and finitely many actual crossing choices into one smooth normal on an open neighborhood of the disk.

  1. theorem OAI.ClosedSurfaceR4.GeometryPreservation.compact_actual_crossing_normal line 15