\ProvidesPackage{tex-macros} \RequirePackage{amsmath} \let\sidesum\sum% \let\sidelim\lim% \renewcommand\sum{\sidesum\limits} \renewcommand\lim{\sidelim\limits} \newcommand{\problem}[1]{\subsection*{#1.}} \newcommand{\pbl}[1]{\subsection*{#1.}} \newcommand{\N}{\ensuremath{\mathbb{N}}} \newcommand{\Z}{\ensuremath{\mathbb{Z}}} \newcommand{\R}{\ensuremath{\mathbb{R}}} \newcommand{\Q}{\ensuremath{\mathbb{Q}}} \newcommand\C{\ensuremath{\mathbb{C}}} \DeclareMathOperator{\GL}{GL} \DeclareMathOperator{\Imm}{Im} \DeclareMathOperator{\Ker}{Ker} \DeclareMathOperator{\Aut}{Aut} \DeclareMathOperator{\Hom}{Hom} \DeclareMathOperator{\Hol}{Hol} \DeclareMathOperator{\Arg}{Arg} \DeclareMathOperator{\Log}{Log}