ArthurRubin 2006-11-07 18:52:27 2006-11-07 18:52:27 Biography % this is the default PlanetMath preamble. as your knowledge % of TeX increases, you will probably want to edit this, but % it should be fine as is for beginners. % almost certainly you want these \usepackage{amssymb} \usepackage{amsmath} \usepackage{amsfonts} % used for TeXing text within eps files %\usepackage{psfrag} % need this for including graphics (\includegraphics) %\usepackage{graphicx} % for neatly defining theorems and propositions %\usepackage{amsthm} % making logically defined graphics %\usepackage{xypic} % there are many more packages, add them here as you need them % define commands here \emph{Arthur Rubin} (1956 - ) American mathematician, co-author of a paper on graph theory with Paul Erd\H{o}s in 1980. For four consecutive years in the 1970s, Rubin placed high in the William Lowell Putnam Competition. These days, he's an active contributor to Wikipedia articles on mathematical topics, such as the three cards problem.