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De Morgan's laws |
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De Morgan's laws
pl n (Philosophy / Logic) (in formal logic and set theory) the principles that conjunction and disjunction, or union and intersection, are dual. Thus the negation of P & Q is equivalent to not-P or not-Q [named after Augustus De Morgan (1806-71), British mathematician] Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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