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27 April, 23:56

Are the rational numbers closed under addition?

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  1. 28 April, 01:25
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    Integers: This set is closed only under addition, subtraction, and multiplication. Rational Numbers: This set is closed under addition, subtraction, multiplication, and division (with the exception of division by 0). Irrational Numbers: This set is closed for none of the operations (e. g., = 2, a rational number).
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