OAI/Geometry/SurfaceImmersion/Atlas/CompactTimeChart.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

A regular coordinate map on a compact set gives a time chart, retaining its prescribed longitudinal coordinate on the whole source.

  1. theorem OAI.ClosedSurfaceR4.FiniteOrderSmoothing.compact_time_chart line 17