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Splitting an operator: Algebraic modularity results for logics with fixpoint semantics

Splitting an operator: Algebraic modularity results for logics with fixpoint semantics It is well known that, under certain conditions, it is possible to split logic programs under stable model semantics, that is, to divide such a program into a number of different “levels”, such that the models of the entire program can be constructed by incrementally constructing models for each level. Similar results exist for other nonmonotonic formalisms, such as auto-epistemic logic and default logic. In this work, we present a general, algebraic splitting theory for logics with a fixpoint semantics. Together with the framework of approximation theory , a general fixpoint theory for arbitrary operators, this gives us a uniform and powerful way of deriving splitting results for each logic with a fixpoint semantics. We demonstrate the usefulness of these results, by generalizing existing results for logic programming, auto-epistemic logic and default logic. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Computational Logic (TOCL) Association for Computing Machinery

Splitting an operator: Algebraic modularity results for logics with fixpoint semantics

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References (34)

Publisher
Association for Computing Machinery
Copyright
Copyright © 2006 by ACM Inc.
ISSN
1529-3785
DOI
10.1145/1183278.1183284
Publisher site
See Article on Publisher Site

Abstract

It is well known that, under certain conditions, it is possible to split logic programs under stable model semantics, that is, to divide such a program into a number of different “levels”, such that the models of the entire program can be constructed by incrementally constructing models for each level. Similar results exist for other nonmonotonic formalisms, such as auto-epistemic logic and default logic. In this work, we present a general, algebraic splitting theory for logics with a fixpoint semantics. Together with the framework of approximation theory , a general fixpoint theory for arbitrary operators, this gives us a uniform and powerful way of deriving splitting results for each logic with a fixpoint semantics. We demonstrate the usefulness of these results, by generalizing existing results for logic programming, auto-epistemic logic and default logic.

Journal

ACM Transactions on Computational Logic (TOCL)Association for Computing Machinery

Published: Oct 1, 2006

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