Logics in Artificial Intelligence
Volume 1489 of the series Lecture Notes in Computer Science pp 92106
Phased Labeled Logics of Conditional Goals
 Leendert W. N. van der TorreAffiliated withIRIT, Paul Sabatier University
Abstract
In this paper we introduce phased labeled logics of conditional goals. Labels are used to impose restrictions on the proof theory of the logic. The restriction discussed in this paper is that a proof rule can be blocked in a derivation due to the fact that another proof rule has been applied earlier in the derivation. We call a set of proof rules that can be applied in any order a phase in the proof theory. We propose a onephase logic of goals containing four proof rules, and we show that it is equivalent to a fourphase logic of goals in which each phase contains exactly one proof rule. The proof theory of the fourphase logic of goals is much more effcient, because other orderings no longer have to be considered.
 Title
 Phased Labeled Logics of Conditional Goals
 Book Title
 Logics in Artificial Intelligence
 Book Subtitle
 European Workshop, JELIA’ 98 Dagstuhl, Germany, October 12–15, 1998 Proceedings
 Pages
 pp 92106
 Copyright
 1998
 DOI
 10.1007/3540495452_7
 Print ISBN
 9783540651413
 Online ISBN
 9783540495451
 Series Title
 Lecture Notes in Computer Science
 Series Volume
 1489
 Series ISSN
 03029743
 Publisher
 Springer Berlin Heidelberg
 Copyright Holder
 SpringerVerlag Berlin Heidelberg
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 Editors

 Jürgen Dix ^{(1)}
 Luís Fariñas del Cerro ^{(2)}
 Ulrich Furbach ^{(3)}
 Editor Affiliations

 1. Department of Computer Science, University of Maryland
 2. I.R.I.T. Université Paul Sabatier
 3. Fachbereich 4: Informatik, Universität Koblenz
 Authors

 Leendert W. N. van der Torre ^{(6)}
 Author Affiliations

 6. IRIT, Paul Sabatier University, Toulouse, France
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