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Viewing Preamble for span
[
back to 'span'
]
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsfonts}
\def\vec#1{\overrightarrow{\mathbf{#1}}}
\def\R{\mathbb{R}}
\def\Sp{\operatorname{Sp}}
\newcommand{\ZZ}{\mathbb{Z}}
