A Conversation about Fuzzy Logic and Vagueness

Authors: C. Fermüller, Petr Hájek
Publication year: 2011
Publication type: Kapitola v monografii
Periodical: Understanding Vagueness. Logical, Philosophical and Linguistic Perspectives
Projects: Logical Models of Reasoning with Vague Information
Bibliographic citation: FERMÜLLER, C., HÁJEK, Petr. A Conversation about Fuzzy Logic and Vagueness. In: CINTULA, P., FERMÜLLER, G., GODO, L., HÁJEK, P., eds. Understanding Vagueness. Logical, Philosophical and Linguistic Perspectives. London: College Publications, 2011, S. 405-416. Studies in Logic, 36. ISBN 978-1-84890-037-0. Dostupné z: http://www.logic.at/lomorevi/vaguebook/fermueller-hajek.pdf
ID: 373168
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Abstract

Proposition is vague if, in addition to being fuzzy, i.e., amenable to representation by fuzzy sets and relations, “it is insufficiently specific for a particular purpose” [Zadeh]. But in any case, it is clear that fuzziness and vagueness are closely related and might not always be distinguishable in practice. There is some kind of dependency: fuzzy notions systematically give rise to vague language.