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law of contradiction |
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law of contradiction [‚lȯ əv ‚kän·trə′dik·shən] (mathematics) A principle of logic whereby a proposition cannot be both true and false. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The principles of definition, the law of contradiction, the fallacy of arguing in a circle, the distinction between the essence and accidents of a thing or notion, between means and ends, between causes and conditions; also the division of the mind into the rational, concupiscent, and irascible elements, or of pleasures and desires into necessary and unnecessary-- these and other great forms of thought are all of them to be found in the Republic, and were probably first invented by Plato. And yet, observing the strange law of contradiction which obtains in all such cases, the time was long, while it flamed by so fast. |
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