Diamonds and Defaults : Studies in Pure and Applied Intentional Logic. This item is unavailable.Diamonds and Defaults : Studies in Pure and Applied Intentional Logic

This volume contains a selection of papers presented at a Seminar on Intensional Logic held at the University of Amsterdam during the period September 1990-May 1991. Modal logic, either as a topic or as a tool, is common to most of the papers in this volume. A number of the papers are con­ cerned with what may be called well-known or traditional modal systems, but, as a quick glance through this volume will reveal, this by no means implies that they walk the beaten tracks. In­ deed, such contributions display new directions, new results, and new techniques to obtain familiar results. Other papers in this volume are representative examples of a current trend in modal logic: the study of extensions or adaptations of the standard sys­ tems that have been introduced to overcome various shortcomings of the latter, especially their limited expressive power. Finally, there is another major theme that can be discerned in the vol­ ume, a theme that may be described by the slogan 'representing changing information. ' Papers falling under this heading address long-standing issues in the area, or present a systematic approach, while a critical survey and a report contributing new techniques are also included. The bulk of the papers on pure modal logic deal with theoreti­ calor even foundational aspects of modal systems.

The papers collected in this volume, most of them derived from presentations at the Amsterdam Seminar on Intensional Logic, report recent work in pure and applied intensional logic, and are written by researchers from philosophical and mathematical logic, artificial intelligence and computational linguistics. Most of the contributions deal with modal or temporal logic, either as a topic or as a tool. Another major theme in the book may be described as 'representing changing information'. The papers constitute an important collection, addressing issues that have received a good deal of attention in recent years. The volume is aimed at researchers and students in logic, both pure and applied, and artificial intelligence. It is also of interest to philosophers and computational linguists.