- #1
furi0n
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Homework Statement
LEt S is supset of real numbers and suppose that there is X0 is member of S such that x0>=x for all x which is member of S(i.e. x0 is the maximum of S). show that x0=supS
Homework Equations
The Attempt at a Solution
Not: this seems too easy question but i can't understand how ı can prove it please help me it's my important homework.. :(