OAI/GroupTheory/PolycyclicRecognition/Algebra/FiniteIndexKernelQuotient.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

Quotienting by a characteristic finite-index subgroup of the kernel

  1. def OAI.PolycyclicRecognition.finiteIndexKernelQuotientMap line 13
  2. theorem OAI.PolycyclicRecognition.finiteIndexKernelQuotientMap_surjective line 18
  3. theorem OAI.PolycyclicRecognition.finiteIndexKernelQuotientMap_kernel_finite line 23