OAI/Geometry/SurfaceImmersion/Whitney/CrosscapAxisDoublePair.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Away from zero, the opposite kernel-axis source points form genuine double pairs of the original surface map throughout the chart domain.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.SurfaceCrosscapCoordinates.axis_double_pair line 17