proposition: Lemma prime28687 : prime 28687.
proof: Proof. apply (Pocklington_refl (Pock_certif 28687 6 ((7, 1)::(3, 1)::(2,1)::nil) 7) ((Proof_certif 3 prime3) :: (Proof_certif 7 prime7) :: (Proof_certif 2 prime2) :: nil)). enc (refl_equal true). Qed.
imports: List ZArith Coqprime(ZCAux) Pock