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Mathematics, 13.09.2019 17:30 sodiumvlogsYT

Let a and b be non-empty, bounded subsets of r. (a) why does sup(aub) exist? (b) prove that sup(aub) = max{sup a, sup b}.

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Let a and b be non-empty, bounded subsets of r. (a) why does sup(aub) exist? (b) prove that sup(aub...
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