OAI/Geometry/SurfaceImmersion/Whitney/FiniteCrosscapCleanup.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

A prepared finite-crosscap map with global self-transversality and no additional preimage of any singular point image, preserving every quadratic germ.

  1. def OAI.ClosedSurfaceR4.FiniteOrderSmoothing.QuadraticCrosscapGerms line 17
  2. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.clean_finite_quadratic_map line 25