negation

  1. Noun.  (uncountable) The act of negating something.
  2. Noun.  (countable) A denial or contradiction.
  3. Noun.  (logic, countable) A proposition that is true if and only if another one is false; a proposition resulting from the application to another proposition of the logical operation "not".
  4. Noun.  (logic) The logical operation which obtains such (negated) propositions.

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This entry was last updated on RefTopia from its source on 3/20/2012.