> "Not anything (the negative of all things) is better than eternal  
> happiness.
>      A ham sandwich is better than not something (no particular thing)
>          Therefore, there is no therefore .... ? :-)"
Well, coming from a math background, here's how you would best express that to me:

There is no thing that is better than eternal happiness.
There is no thing that a ham sandwich is better than.

Devin