The Coq tool is a proof assistant which is able to
handle calculus assertions, to check proofs of
these assertions mechanically, and to extract a
certified program from the constructive proof of
its formal specification.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.