- #1

furi0n

- 19

- 0

## Homework Statement

LEt S is supset of real numbers and suppose that there is X

_{0}is member of S such that x

_{0}>=x for all x which is member of S(i.e. x

_{0}is the maximum of S). show that x

_{0}=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.. :(