D. Dubois et H. Prade, POSSIBILITY THEORY IS NOT FULLY COMPOSITIONAL - A COMMENT ON A SHORT NOTE BY GREENBERG,H.J, Fuzzy sets and systems, 95(1), 1998, pp. 131-134
Citations number
26
Categorie Soggetti
Statistic & Probability",Mathematics,"Computer Science Theory & Methods","Statistic & Probability",Mathematics,"Computer Science Theory & Methods
A recent short note [H.J. Greenberg, Fuzzy Sets and Systems 86 (1997)
249-250] has assumed that a possibility measure is fully compositional
with respect to negation, conjunction and disjunction. Up to a trivia
l exception, such a possibility measure does not exist. This short not
e recalls that the calculus of possibility measures on Boolean proposi
tions is not compositional (except for the disjunction) and has little
to do with the fully compositional max-min calculus of degrees of tru
th for fuzzy propositions. (C) 1998 Elsevier Science B.V.