Steven D'Aprano wrote:
> Since real source code verifiers make no such sweeping claims to > perfection (or at least if they do they are wrong to do so), there is > no such proof that they are impossible. By using more and more > elaborate checking algorithms, your verifier gets better at correctly > verifying source code -- but there is no guarantee that it will be > able to correctly verify every imaginable program. > I'm sure you can make a stronger statement than your last one. Doesn't Godel's incompleteness theorem apply? I would have thought that no matter how elaborate the checking it is guaranteed there exist programs which are correct but your verifier cannot prove that they are. -- http://mail.python.org/mailman/listinfo/python-list