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  3. (v) let a ? r, b ? r, a 6= ?, b 6= ? be...

(V) Let A ? R, B ? R, A 6= ?, B 6= ? be...

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Advance Math

(V) Let A ? R, B ? R, A 6= ?, B 6= ? be two bounded subset of R.Define a set A ? B := {a ? b : a ? A and b ? B}. Show that sup(A ?B) = sup A ? inf B and inf(A ? B) = inf A ? sup B

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