OAI/Geometry/SurfaceImmersion/Atlas/PhaseSphericalGeometry.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Initial inward radial positivity in every fixed nonlinear phase chart. It supplies the whole-curve part of the finite boundary invariant.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.PhaseBoundaryCurve.spherical_second_positive line 18