fact: Definition c_hat (X:Torsor ℤ) (x : X) : c_tilde X (1 + x) = cp (ε x) (p * c_tilde X x) := pr22 (cQ X) x.
imports: UniMath.Foundations.All UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Propositions UniMath.MoreFoundations.Equivalences UniMath.MoreFoundations.PathsOver UniMath.Algebra.Monoids UniMath.SyntheticHomotopyTheory.AffineLine UniMath.NumberSystems.Integers UniMath.Algebra.BinaryOperations UniMath.Algebra.GroupAction UniMath.Algebra.Groups