# fuzzy logic

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## fuzzy logic

n.
A form of algebra employing a range of values from "true" to "false" that is used in decision-making with imprecise data, as in artificial intelligence systems.

## fuzzy logic

n
(Logic) a branch of logic designed to allow degrees of imprecision in reasoning and knowledge, typified by terms such as 'very', 'quite possibly', and 'unlikely', to be represented in such a way that the information can be processed by computer

## fuzz′y log′ic

n.
the theory of a mathematical set (fuzz′y set′) having the property that each of its members is described in terms of a number, with a value in the range from 0 to 1, that indicates the degree on a spectrum of values to which the member belongs to the set.
[1960–65]

## fuzzy logic

A system of rules governing a decision making process in which propositions may be assigned degrees of truthfulness rather than a simple true or false value.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 fuzzy logic - a form of mathematical logic in which truth can assume a continuum of values between 0 and 1formal logic, mathematical logic, symbolic logic - any logical system that abstracts the form of statements away from their content in order to establish abstract criteria of consistency and validity
Translations
fuzzy logika
lógica borrosalógica difusa
sumea logiikka
logique floue
לוגיקה עמומה
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References in periodicals archive ?
But when a fuzzy logician says, "Tom's degree of membership within the set of tall men is .30," he means that Tom is not very tall at all.
The outright rejection of bivalence by fuzzy logicians constitutes a redefinition of the concept of difference: rather than perceiving difference as the finite space--the slash mark--between two truth values (true/false, is/is not, 0/1), Zadeh proposed difference as a trajectory of change spanning an infinite and infinitely divisible spectrum of truths.
By virtue of particular authors' status, bold assertions, and effective pedagogical techniques, the participating fuzzy logicians mostly came to agree that Elkan's proof illegitimately used the law of the excluded middle (either A or not-A is true), which does not apply within fuzzy logic.

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