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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 Ref
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.
6858 | Formal logic struck me as exactly the language I wanted to think in [Williamson] |
6859 | Analytic philosophy has much higher standards of thinking than continental philosophy [Williamson] |
6860 | How can one discriminate yellow from red, but not the colours in between? [Williamson] |
6861 | What sort of logic is needed for vague concepts, and what sort of concept of truth? [Williamson] |
6862 | Fuzzy logic uses a continuum of truth, but it implies contradictions [Williamson] |
6863 | Close to conceptual boundaries judgement is too unreliable to give knowledge [Williamson] |