OAI/Geometry/SurfaceImmersion/Primitive/BoundaryJetCrossings.lean

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4 declarations, 0 contain sorry, 0 declared as axioms

Both ordered boundary inequalities persist under small exterior C2 changes.

  1. def OAI.ClosedSurfaceR4.GeometryPreservation.boundaryJetCrossings line 12
  2. lemma OAI.ClosedSurfaceR4.GeometryPreservation.isOpen_boundaryJetCrossings line 19
  3. theorem OAI.ClosedSurfaceR4.GeometryPreservation.compact_boundary_jet_crossings line 42
  4. theorem OAI.ClosedSurfaceR4.GeometryPreservation.compact_actual_exterior_crossings line 61