About Trust and Proof: An experimental framework for heterogeneous verification
Résumé
Information and opinions come to us daily from a wide range of actors, including scientists, journalists, and pundits. Some actors may be biased or malicious, while others rely on physical measurements, statistics, or in-depth research. Some sources may be signed or edited, while others are anonymous and unmoderated. Trusting information from such diverse sources is a serious challenge facing society today. In this paper, we will describe another domain-the world of machinechecked logic and mathematics-in which many similar issues can appear but in which tractable solutions are possible. Many actors (people or software systems) assert that certain logical statements are theorems in this domain. We describe the Distributed Assertion Management Framework (DAMF) that explicitly manages claims by theorem provers that they have proved certain theorems from associated contexts. Provers willing to trust other provers will be able to avoid rechecking proofs.
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