law of the excluded middle
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law of the excluded middle
[¦lȯ əvthē ik‚sklüd·əd ′mid·əl] (mathematics)
A principle of logic whereby a proposition is either true or false but cannot be both true and false. Also known as principle of dichotomy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Pierce noted that Actuals and Probables DO obey the
law of the Excluded Middle, but Possibles do not.
He refined his claims in the final journal article presenting it, narrowing his sights on an "apparently reasonable" version of fuzzy logic, and making explicit the specific instance of the
law of the excluded middle on which his proof depended.
If this is so, the
law of the excluded middle, which incorporates this 'is,' has sent us off on the wrong track.
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