Re: Thoughts and Perceptions

From: John Wilkins (
Date: Thu Apr 18 2002 - 07:45:45 BST

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    On Thursday, April 18, 2002, at 01:41 PM, Scott Chase wrote:
    > And isn't a version of "truth" known as "correspondence with the facts"?
    > Popper plays up someone named Tarski (enter John Wilkins, resident
    > philosopher).
    You rang?

    Actually, there are several theories of truth - the most common are the
    correspondence theory, the coherence theory, and the deflationary theory.
    Tarski asserted that truth is just the assertion of the sentence that is
    true (snow is white iff "snow is white" is true). This is called
    Convention T, and it is this that Popper appealed to. A more recent theory
    is the "revision theory" that a sentence is true if any logical revision
    results in it being true in that arbitrary model.

    There are others. Check out the online Stanford Encyclopedia of Philosophy:

    John S Wilkins
    PhD Student - jointly between
    History and Philosophy of Science, and Botany
    University of Melbourne
    Topic: Species concepts

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