proposition: Lemma prime18947 : prime 18947.
proof: Proof. apply (Pocklington_refl (Pock_certif 18947 2 ((9473, 1)::(2,1)::nil) 1) ((Proof_certif 9473 prime9473) :: (Proof_certif 2 prime2) :: nil)). enc (refl_equal true). Qed.
imports: List ZArith Coqprime(ZCAux) Pock