# Is α an open cover for n and/or n ?

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Real Analysis

Let xEn/n be an irrational number. For each rational number yEn define... Let be the collection of all these open balls of n. Is Î± an open cover for n and/or n? Does there exist a finite subcover of Î± for n and/or n?

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https://brainmass.com/math/real-analysis/open-cover-36303

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Real Analysis

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This solution is comprised of a detailed explanation of the collection of open balls.

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