Abstract
Fuzzy logics are systems of logic with infinitely many truth values. Such logics have been claimed to have an extremely wide range of applications in linguistics, computer technology, psychology, etc. In this note, we canvass the known results concerning infinitely many valued logics; make some suggestions for alterations of the known systems in order to accommodate what modern devotees of fuzzy logic claim to desire; and we prove some theorems to the effect that there can be no fuzzy logic which will do what its advocates want. Finally, we suggest ways to accommodate these desires in finitely many valued logics.
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We would like to express our thanks to Stan Peters for helpful conversations. The method in the Appendix is due to David Lewis.
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Morgan, C.G., Pelletier, F.J. Some notes concerning fuzzy logics. Linguistic and Philosophy 1, 79–97 (1977). https://doi.org/10.1007/BF00351937
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DOI: https://doi.org/10.1007/BF00351937