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Single Idea 11018

[filed under theme 4. Formal Logic / E. Nonclassical Logics / 4. Fuzzy Logic ]

Full Idea

In fuzzy logic, besides fuzzy predicates, which define fuzzy sets, there are also fuzzy quantifiers (such as 'most' and 'few') and fuzzy modifiers (such as 'usually').

Gist of Idea

There are fuzzy predicates (and sets), and fuzzy quantifiers and modifiers

Source

Stephen Read (Thinking About Logic [1995], Ch.7)

Book Ref

Read,Stephen: 'Thinking About Logic' [OUP 1995], p.189


The 4 ideas with the same theme [logic using infinite gradations between true and false]:

Fuzzy logic is based on the notion that there can be membership of a set to some degree [Mautner]
Fuzzy logic uses a continuum of truth, but it implies contradictions [Williamson]
There are fuzzy predicates (and sets), and fuzzy quantifiers and modifiers [Read]
Fuzzy logic has many truth values, ranging in fractions from 0 to 1 [Fisher]