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Viewing Preamble for simplicity of the alternating groups

[ back to 'simplicity of the alternating groups' ]

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

\newtheorem{theorem}{Theorem}
\newtheorem{lemma}[theorem]{Lemma}