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additive inverse
(redirected from opposite number)

    Also found in: Dictionary/thesaurus, Legal, Wikipedia 0.01 sec.
additive inverse [′ad·ə·div ′in‚vərs]
(mathematics)
In a mathematical system with an operation of addition denoted +, an additive inverse of an elementeis an element -esuch thate+ (-e) = (-e) +e= 0, where 0 is the additive identity.


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