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Earn +20 ptsQ: What is a set of rational numbers not closed under?
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Are the set of rational numbers closed under addition?
Yes, the set is closed.
Is a rational number closed under addition?
No. A number cannot be closed under addition: only a set can be closed. The set of rational numbers is closed under addition.
Is the set of rational numbers closed under addtion?
Yes, it is.
Is the set of rational numbers closed under addition?
Yes, it is.
Are the set of rational numbers closed under division?
No, it is not. Division by zero (a rational) is not defined.
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