\documentclass[12pt,a4paper]{report}

\usepackage{amsthm,amssymb,amsmath}  
\usepackage[quickindex]{xepersian}

\begin{document}
	\baselineskip=1.2cm
\text{(i) }
$ x^{y}=x[x,y]  $\\
\text{(ii) }
$xy=yx[x,y] $\\
\text{(iii) }
$[x,y]^{-1}=[y,x] $\\
\text{(iv) }
$[x,y]^{z}=[x^{z},y^{z}] $\\
\text{(v) }$[xy,z]=[x,z]^{y}[y,z]  $\\
\vspace{-1cm}
\hspace{6cm}   \text{(اتحاد های هال)}
\\
\text{(vi) }$[x,yz]=[x,z][x,y]^{z}   $
\end{document}