I did this page a while ago, but don't think I told you guys about it: Taylor Series
Comments and suggestions welcome!
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
I say leave it as it is. It is a good introduction.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.