proposition: Lemma prime21523 : prime 21523.
proof: Proof. apply (Pocklington_refl (Pock_certif 21523 2 ((17, 1)::(2,1)::nil) 19) ((Proof_certif 17 prime17) :: (Proof_certif 2 prime2) :: nil)). enc (refl_equal true). Qed.
imports: List ZArith Coqprime(ZCAux) Pock