main_02.tex

%version 2.2
\documentclass[12pt, a4paper]{article}
%\documentclass[12pt]{article}


\usepackage{preamble_mpb_02}
\usepackage{environments_mpb_02}
\usepackage{notation_mpb_02}
\usepackage{import}




\begin{document}

%\import{foldr_path/}{file_name.tex}

$ \yo$

$\Yo$





\end{document}