User:Joe

My Sandbox ~ New User Message

Contact Info

 * post on my discussion page.(probably the best method)
 * joe at proofwiki.org ([mailto:joe@proofwiki.org mailto])
 * webmaster at proofwiki.org ([mailto:webmaster@proofwiki.org mailto] for site related things)

Things I'm Currently Working On

 * Mathematicians
 * Template:Mathematician
 * Template:begin-equation
 * Template:equation
 * Template:end-equation

Things That I'm Editing As Need Be
If you have any suggestions for these pages please let me know, as it will benefit the whole community.
 * Mediawiki:Edittools
 * Mediawiki:Common.js
 * Mediawiki:Common.css

ProofWiki Links

 * Uncategorized Pages
 * Uncategorized Definitions

By Differentiation
$$x=\underbrace{1+1+1+\ldots+1}_{\mbox{x times}}$$

$$x^2 = \underbrace{x+x+x+\ldots+x}_{\mbox{x times}}$$

$$2x=\underbrace{1+1+1+\ldots+1}_{\mbox{x times}}$$, by differentiating w.r.t. $$x$$

$$2x=x$$

$$2=1$$