\documentclass[oneside,openany,msc]{Amirkabir_thesis}
\usepackage{amsthm,amssymb,amsmath}
\usepackage[top=30mm, bottom=30mm, left=25mm, right=30mm]{geometry}
\usepackage{xepersian}
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\begin{document}
\chapter{}
\section{}
\subsection{}
\end{document}