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Propositional defeasible logic has linear complexity

Published: 01 November 2001 Publication History

Abstract

Defeasible logic is a rule-based nonmonotonic logic, with both strict and defeasible rules, and a priority relation on rules. We show that inference in the propositional form of the logic can be performed in linear time. This contrasts markedly with most other propositional nonmonotonic logics, in which inference is intractable.

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Published In

cover image Theory and Practice of Logic Programming
Theory and Practice of Logic Programming  Volume 1, Issue 6
November 2001
96 pages

Publisher

Cambridge University Press

United States

Publication History

Published: 01 November 2001

Author Tags

  1. computational complexity
  2. defeasible reasoning
  3. non-monotonic logic

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