| Definition: | element of the unlimited totally ordered set {..., −2, −1, 0, 1, 2, ...} NOTE 1 The set of integers is the smallest set of mathematical entities that includes the natural numbers and for which the operation of subtraction is defined for any two entities. The operations of addition and multiplication are also defined for any two integers. Any integer has a negative. NOTE 2 The set of integers is denoted by ℤ (Z with oblique bar doubled) or Z. This set without zero is denoted by an asterisk to the symbol, for example ℤ*.
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