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Viewing Preamble for simple and semi-simple Lie algebras

[ back to 'simple and semi-simple Lie algebras' ]

\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsfonts}

\newcommand{\fr}[1]{\mathfrak{#1}}
\def\C{\mathbb{C}}
\def\R{\mathbb{R}}