OAI/GroupTheory/PolycyclicRecognition/Geometry/IntrinsicAdjointDerivative.lean

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The infinitesimal adjoint action

Right exponential flow transports a left-invariant field by conjugation. Naturality of brackets on time times a chart identifies its derivative with the intrinsic Lie bracket, without a linear representation.

  1. theorem OAI.PolycyclicRecognition.hasDerivAt_adjoint_exponential_zero line 23