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Legal Concepts in a Natural Language Based Expert System *
Author(s) -
LEHMANN HUBERT
Publication year - 1990
Publication title -
ratio juris
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 10
eISSN - 1467-9337
pISSN - 0952-1917
DOI - 10.1111/j.1467-9337.1990.tb00061.x
Subject(s) - deontic logic , obligation , computer science , natural language , natural (archaeology) , expert system , interface (matter) , work (physics) , artificial intelligence , natural language processing , epistemology , linguistics , law , philosophy , political science , engineering , mechanical engineering , archaeology , bubble , maximum bubble pressure method , parallel computing , history
Abstract. A new approach to the formalization of concepts used in legal reasoning such as obligation and cause is presented. The formalization is based on the linguistic use of the concepts both in legal language and in ordinary language, and has been motivated by work on a legal expert system with a natural language interface. Particularly for the concept of obligation this yields quite different results from those obtained by the usual approach of deontic logic: So‐called paradoxes are avoided, quantification over obligations becomes possible, no restriction to a “single‐agent system” is required, and collisions of obligations can be formulated.