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Mathematics, 13.11.2019 17:31 ajayrose

Let a and b be nonempty bounded subsets of r(real numbers), and let a+b be the set of all sums a+b where a∈a and b∈b.

a)prove sup(a+b)= supa + supb (hint: to show supa+supb
b)prove inf(a+b)= infa+infb

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