\documentclass[8pt,twocolumn]{extarticle}

\usepackage[bookmarks=false,ps2pdf]{hyperref}
\usepackage[american]{babel}
\usepackage{matex}

\newcounter{node}
\renewcommand*\ObjIncNode{\stepcounter{node}}
\renewcommand*\ObjNode{\arabic{node} }

\begin{document}

\input{objs}

\end{document}
