Question: Let f: [a, b] -> R be function. For r ER, we define following two subsets: U(I) = inf {f(y) | x

Let f: [a, b] -> R be function. For r ER,we define following two subsets: U(I) = inf {f(y) | x image text in transcribed

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Let f: [a, b] -> R be function. For r ER, we define following two subsets: U(I) = inf {f(y) | x

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