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\documentclass[openany]{book}
\usepackage{supertabular}
\usepackage{amsthm,amssymb,amsmath,mathabx} 
\usepackage{multicol}
\usepackage{xepersian}
\settextfont[Scale=1.1]{XB Niloofar}

\begin{document} 
  
 \فصل*{فهرست نمادها}
\renewcommand{\chaptermark}[1]{\markboth{\MakeUppercase{\ #1}}{\MakeUppercase{\ #1}}}
\addcontentsline{toc}{part}{فهرست نمادها}
\chaptermark{فهرست نمادها} 

\begin{multicols}{2}
\begin{supertabular}{lrr}

${\Bbb R},$ & & \pageref{R}\\

مجموعه اعداد صحیح &  &\pageref{integer}\\

$ +\infty $& & \pageref{infty}\\

$ {\Bbb N} $& & \pageref{N}\\

$  {\Bbb Z} $& & \pageref{Z}\\

$ {\Bbb Q}$& & \pageref{Q}\\

\end{supertabular}
\end{multicols}


\end{document}