Fuzzy Logic and Its Application to Legal Reasoning — A Comment to Professor Zadeh

  • Ron A. Shapira
Part of the Studies in Fuzziness and Soft Computing book series (STUDFUZZ, volume 94)


Fuzzy logic, introduced by Professor Lotfi Zadeh more than thirty-five years ago, has become an established analytical tool in a variety of disciplines, including the study of legal reasoning. Fuzziness supplies a useful instrument for modeling various modes of uncertainty and vagueness, not dealt with by traditional probability calculus relying on the age-old structure of two-valued logic. The latter typically handles the uncertainty emanating from lack of information about the subject of interest, but has proved a poor method for modeling semantic vagueness. Fuzzy set theory,1 and the logic constructed on its foundations, were designed to amend these shortcomings.


Membership Function Fuzzy Logic Fuzzy Number Supra Note Legal Reasoning 
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© Physica-Verlag Heidelberg 2002

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  • Ron A. Shapira

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