Theorem 3. If S is a non-empty set of real numbers which is bounded above, then a real number s is the supremum of S if and only if the following two conditions hold : (i) x 0, 3 some x e S such that x > s-E.

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Theorem 3. If S is a non-empty set of real numbers which is bounded
above, then a real number s is the supremum of S if and only if the following
two conditions hold :
(i) x<s Vx S.
(ii) Given any ɛ> 0, 3 some x E S such that x > s - E.
Transcribed Image Text:Theorem 3. If S is a non-empty set of real numbers which is bounded above, then a real number s is the supremum of S if and only if the following two conditions hold : (i) x<s Vx S. (ii) Given any ɛ> 0, 3 some x E S such that x > s - E.
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