A Proof Assistant for Interval Logics

DC/P (duration calculus prover) is a proof assistant for a family of interval logics. It adopts the Gentzen\|style sequent calculus as its basic proof system. The techniques such as term rewriting and automatic decision procedure are integrated to automate many trivial proof steps. In this paper, the authors briefly describe the semantic encoding approach, and the sequent calculus, as well as the related implementation techniques of the DC/P.