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...
Even though it is not very often admitted, partial functions do play a significant role in many practical applications of deduction systems. Kleene has already given a semantic acc...
Abstract. We exhibit a methodology for formulating and verifying metatheorems about deductive systems in the Elf language, an implementation of the LF Logical Framework with an ope...
Constructive negation has been proved to be a valid alternative to negation as failure, especially when negation is required to have, in a sense, an `active' role. In this pa...
d Abstract) Frank S. de Boer, Jan Willem Klopyz , Catuscia Palamidessiyx We study the paradigm of asynchronous process communication, as contrasted with the synchronous communicat...
Frank S. de Boer, Jan Willem Klop, Catuscia Palami...