OAI/GroupTheory/PolycyclicRecognition/Algebra/FactorSystemPullback.lean

GitHub source file

8 declarations, 0 contain sorry, 0 declared as axioms

Restriction of a factor system to a quotient homomorphism

  1. def OAI.PolycyclicRecognition.NonabelianFactorSystem.pullback line 13
  2. def OAI.PolycyclicRecognition.factorPullbackMap line 22
  3. theorem OAI.PolycyclicRecognition.factorPullbackMap_injective line 27
  4. theorem OAI.PolycyclicRecognition.factorPullbackMap_range line 34
  5. theorem OAI.PolycyclicRecognition.factorPullbackMap_isEmbedding line 46
  6. theorem OAI.PolycyclicRecognition.factorPullbackMap_isClosedEmbedding line 51
  7. theorem OAI.PolycyclicRecognition.factorPowerMap_isClosedEmbedding line 58
  8. theorem OAI.PolycyclicRecognition.factorPowerMap_finiteIndex line 70