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\documentclass{amsart}
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\newcommand{\pathtotrunk}{../../}
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\input{\pathtotrunk text/article_preamble.tex}
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\pagestyle{empty}
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\begin{document}
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\thispagestyle{empty}
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\begin{align*}
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abmab & \\
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v_1 v_2 v_3 v_4 A
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\end{align*}
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\end{document}