IEVref:102-01-13ID:
Language:enStatus: 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 ab, if it exists in the set, such that b + (ab) = a

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 ab = 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".


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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