Let S be a non-empty subset of R. (A) Prove that infS<=supS (B )What can you say about S if S=supS? justify.
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do you know what inf S and sup S are?
Originally Posted by hellodolly Let S be a non-empty subset of R. (A) Prove that infS<=supS Let x be any member of S. What can you say about the relationship of x to inf S and sup S? (B )What can you say about S if S=supS? justify. You mean "if inf S= sup S", right? Let x and y be two members of S. If inf S= sup S, what can you say about x and y?
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