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Negation may refer to:

• -x, an operation in mathematics that maps positive numbers to negative numbers and the other way around, equivalent to reversing the sign of a number
• Negation, an operation in logic and computing that maps true to false and false to true
• Negation (linguistics), a concept in grammar or philology that reverses the meaning of a statement. See also grammatical polarity.
• Negation, a CrossGen comic
• The Negation, an album by the Polish metal band Decapitated
• Negationism describes the illegitimate historical revisionist process that attempts to rewrite history by minimizing, denying or simply ignoring essential facts.

See also

• Negative (disambiguation)

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