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Shouldn’t x be greater than -(2)^0.5 at 4:57
Good
I couldn't understand why s cannot the upper bound of S if x^22 ?
Z⊂R has no supremum
![Introduction and Proof of Archimedean Property [Real Analysis]](http://i.ytimg.com/vi/5Ps6hYwOiTE/mqdefault.jpg)
![Introduction and Proof of Archimedean Property [Real Analysis]](/img/tr.png)
Shouldn’t x be greater than -(2)^0.5 at 4:57
Good
I couldn't understand why s cannot the upper bound of S if x^22 ?
Z⊂R has no supremum