OAI/GroupTheory/PolycyclicRecognition/Algebra/AlternatingBarPermutation.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

Alternation of the integral signed bar class

These identities hold before passing to homology and in every characteristic.

  1. theorem OAI.PolycyclicRecognition.signed_sum_of_left_swap_invariant line 14
  2. theorem OAI.PolycyclicRecognition.alternatingBarChain_eq_zero_of_eq line 36
  3. theorem OAI.PolycyclicRecognition.alternatingBarClass_eq_zero_of_eq line 55