OAI/GroupTheory/PolycyclicRecognition/Geometry/RepresentedExponentialLogSmooth.lean

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Smooth inverse coordinates for a represented real triangular exponential

The global homeomorphism is retained as a separate hypothesis. Its inverse is smooth because the represented exponential has injective differential and the represented group coordinates are smooth.

  1. theorem OAI.PolycyclicRecognition.contMDiff_inverse_exponential_chart_of_triangular line 26