Answer to Question #16496 in Real Analysis for sherly

Question #16496
show that a nonempty finite set s subsets R contains its supremum
1
Expert's answer
2012-10-17T09:32:48-0400
Every finite subset in R is linearly ordered by "<=".
So this subset can
be presented as a1<=a2<=...<=a_n.
Thus a_n belongs to this subset,
and it is its maximum and supremum at the same time.

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