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| | Number |
 | | Numbers should be distinguished from numerals, which are (combinations of) symbols used to represent numbers. |
 | | Many languages have the concept of grammatical number, an attribute of certain words and phrases that affects their syntactic usage and meaning. |
 | | (For the finite case, the ordinal and cardinal numbers are equivalent; they diverge in the infinite case.) The arithmetical operations of numbers, such as addition, subtraction, multiplication and division, are generalized in the branch of mathematics called abstract algebra; one obtains the groupss, ringss and fieldss. |
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