fact: Variable (u v a b : nat) (Hu : u <> 0) (Hv : v <> 0) (Huv : is_gcd u v 1).
imports: List Arith Lia Permutation Extraction Undecidability.Shared.Libs.DLW.Utils(utils_tac utils_list utils_nat gcd prime binomial) Undecidability.Shared.Libs.DLW.Vec(pos vec)