Supremums and Infimums (Introduction to Real Analysis I)

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pzzldstudent
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This is the only way I knew how to get all the math symbols in one document. I hope the link works.

http://www.4shared.com/file/63754067/34c48bd5/SupremumInfimum.html"

I've done all my work there on the document.

Any help, corrections, tips, suggestions are greatly appreciated. Thank you very much!
 
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Most look good - think about whether [tex]0 \in \mathbb{N}[/tex].

As a comment: for some of the sequences you have comments like this: ''the sup is [tex]1[/tex] when [tex]n[/tex] is odd''

That isn't the correct way to think about it. The range of the sequence is a set of numbers, and you are looking for the supremum of that set. If that is indeed [tex]1[/tex], you don't need to make any reference to the value of [tex]n[/tex] - simply say [tex]\sup \mathcal{C} = 1[/tex]