OAI/GroupTheory/PolycyclicRecognition/Algebra/CentralBarLift.lean

GitHub source file

8 declarations, 0 contain sorry, 0 declared as axioms

Explicit lifts of two-chains through a central extension

  1. def OAI.PolycyclicRecognition.centralSectionChains line 14
  2. def OAI.PolycyclicRecognition.centralBarKernelLetters line 17
  3. def OAI.PolycyclicRecognition.centralBarLift line 20
  4. theorem OAI.PolycyclicRecognition.centralSectionChains_single line 24
  5. theorem OAI.PolycyclicRecognition.centralBarKernelLetters_single line 28
  6. theorem OAI.PolycyclicRecognition.centralBarLift_single line 33
  7. theorem OAI.PolycyclicRecognition.centralBarLift_boundary line 39
  8. theorem OAI.PolycyclicRecognition.centralBarKernelLetters_sum line 64