Legal reasoning in 3-D

  • Authors:
  • M. Belzer

  • Affiliations:
  • Univ. of Georgia, Athens, GA

  • Venue:
  • ICAIL '87 Proceedings of the 1st international conference on Artificial intelligence and law
  • Year:
  • 1987

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Abstract

This article contains a theory of normative defeasible reasoning based on the modal deontic logic 3-D. The concept of “relative weight” between competing norms is defined, and 3-D is used to formalize two types of legal reasoning (“subsumptive” and “means/end”). A general overview is given of a PROLOG program, 3dpr, that implements the 3-D based theory of normative reasoning.