A lot of methods have been proposed -- and sometimes implemented -- for proof search in the propositional modal logics K, KT, and S4. It is difficult to compare the usefulness of ...
Peter Balsiger, Alain Heuerding, Stefan Schwendima...
—A novel countermodel-producing decision procedure that applies to several multi-modal logics, both intuitionistic and classical, is presented. Based on backwards search in label...
We study the dynamics of information change, using modal logic as a vehicle. Our semantic perspective is that of a supermodel in which a state represents some agent's informa...
The paper proposes a formal analysis of a theory of norms resulting from pulling together Anderson’s reduction, the analysis of counts-as, and a novel approach to the formal rep...
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...