OAI/Geometry/SurfaceImmersion/Whitney/ActualRuledCrosscapStrip.lean
1 declarations, 0 contain sorry, 0 declared as axioms
The supported replacement retains actual endpoint crosscap charts and the same full source strip, rather than just formal derivative data.
- theorem
OAI.ClosedSurfaceR4.FiniteOrderSmoothing.ActualRuledRectangle.crosscap_stripline 17