First, Don, sorry if I couldn't show you better yesterday how to use LaTeX; the example meant to be:
[MATH]\frac{x+y}{a+\ln b}[/MATH] or [IMATH]a^{x+y} + B_n[/IMATH] to render as:

or
The imath tag is slightly better for small things in lines of text.
That said, and before discussing what you mean by a few of the things you say, I'd like you to answer a couple of quick questions. First: How would you set about calculating the following limit?
Second: Is the following an identiy, or would one strictly have to specify something?
Actually, I would further ask you whether the above has any implication about the trivial identity:

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Inutil insegnŕ al mus, si piart timp, in plui si infastiděs la bestie.
Hypography Forum PITA...... er, Administrator.
