proposition: Lemma prime2693 : prime 2693.
proof: Proof. apply (Pocklington_refl (Pock_certif 2693 2 ((673, 1)::(2,2)::nil) 1) ((Proof_certif 673 prime673) :: (Proof_certif 2 prime2) :: nil)). enc (refl_equal true). Qed.
imports: List ZArith Coqprime(ZCAux) Pock