OAI/Geometry/SurfaceImmersion/Atlas/SubmersionFiberLineChart.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Submersion coordinates induce a genuine open interval chart on the zero fiber, with its subspace topology.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.submersion_fiber_line_chart line 12