proposition: Fact nat2Zp_one : 〚1〛= Op.
proof: Proof. apply Zp_inj; simpl; auto. Qed.
imports: Arith Lia ZArith List Permutation Eqdep_dec Undecidability.Shared.Libs.DLW.Utils(utils_tac utils_list gcd prime binomial sums php) Undecidability.H10.ArithLibs(matrix)