proposition: Lemma prime6857 : prime 6857.
proof: Proof. apply (Pocklington_refl (Pock_certif 6857 3 ((857, 1)::(2,3)::nil) 1) ((Proof_certif 857 prime857) :: (Proof_certif 2 prime2) :: nil)). enc (refl_equal true). Qed.
imports: List ZArith Coqprime(ZCAux) Pock