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Isaac Solomon earned this badge 3 times
apr 14 at 4:02
How would one go about proving that the rationals are not the countable intersection of open sets?
mar 13 '12 at 15:18
Is there an absolute notion of the infinite?
mar 14 '11 at 11:26
Is there a quick proof as to why the vector space of $\mathbb{R}$ over $\mathbb{Q}$ is infinite-dimensional?

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