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IEVref: | 102-01-13 | ID: | |

Language: | en | Status: Standard | |

Term: | subtraction | ||

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Definition: | operation performed on a set for which an addition is defined, usually denoted by the minus symbol −, the result of which, for elements a and b of the set, is the unique element a − b, if it exists in the set, such that b + (a − b) = aNote 1 to entry: Subtraction is defined for integers and extended to other classes of numbers and to mathematical entities such as vectors and matrices, and also to quantities of the same kind. Note 2 to entry: The subtraction of entities Note 3 to entry: The subtraction of entities | ||

Publication date: | 2008-08 | ||

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Internal notes: | 2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO | ||

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Note 1 to entry: Subtraction is defined for integers and extended to other classes of numbers and to mathematical entities such as vectors and matrices, and also to quantities of the same kind.

Note 2 to entry: The subtraction of entities *a* and *b* can be defined by *a* − *b* = *a* + (−*b*) where −*b* is the negative of *b*.

Note 3 to entry: The subtraction of entities *a* and *b* is expressed by the words "*a* minus *b*".