Single Idea 6862

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

Full Idea

Fuzzy logic is based on a continuum of degrees of truth, but it is committed to the idea that it is half-true that one identical twin is tall and the other twin is not, even though they are the same height.

Gist of Idea

Fuzzy logic uses a continuum of truth, but it implies contradictions

Source

Timothy Williamson (Interview with Baggini and Stangroom [2001], p.154)

Book Reference

Baggini,J/Stangroom,J: 'New British Philosophy' [Routledge 2002], p.154


A Reaction

Maybe to be shocked by a contradiction is missing the point of fuzzy logic? Half full is the same as half empty. The logic does not say the twins are different, because it is half-true that they are both tall, and half-true that they both aren't.