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yark

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Member for
13 years 9 months
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Preamble: 
\usepackage{amssymb} \usepackage{amsmath} \usepackage{amsfonts} %\usepackage{psfrag} %\usepackage{graphicx} %\usepackage{amsthm} %\usepackage{xypic} \renewcommand{\le}{\leqslant} \renewcommand{\ge}{\geqslant} \renewcommand{\leq}{\leqslant} \renewcommand{\geq}{\geqslant}
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All my contributions to PlanetMath can also be used under the <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0 Unported License</a>. (But note that many entries now owned by me were not contributed by me.)