Abstract. In a trace-based world, the modular speci cation, veri cation, and control of live systems require each module to be receptive that is, each module must be able to meet i...
In its current implementation, the World-Wide Web lacks much of the explicit structure and strong typing found in many closed hypertext systems. While this property has directly f...
Abstract. We introduce a novel extension of propositional modal logic that is interpreted over Kripke structures in which a value is associated with every possible world. These val...
We present a web-based application that allows a user to, walk through, see, and interact with a fully threedimensional model of an old Mexican city. The city itself motivates thi...
Motivated by description logics, we investigate what happens to the complexity of modal satisfiability problems if we only allow formulas built from literals, , 3, and 2. Previous...