Here is the problem. How would I go about proving this one?

Thanks!!

http://i10.photobucket.com/albums/a1.../problem32.png

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- September 14th 2010, 10:03 AMPhyxius117Real Analysis: Union of Countable Infinite Sets Proof
Here is the problem. How would I go about proving this one?

Thanks!!

http://i10.photobucket.com/albums/a1.../problem32.png - September 14th 2010, 10:08 AMTheEmptySet
Consider the function

by

- September 14th 2010, 03:23 PMPhyxius117
Would i do this with direct proof or contradiction?

- September 14th 2010, 05:06 PMDefunkt
The method TES offered gives you a direct proof.

- September 14th 2010, 05:38 PMPhyxius117
Thanks!