\documentclass[10pt]{article}
\parindent=0pt \parskip=8pt

\usepackage{verbatim}
\usepackage{fullpage}

\usepackage{amssymb,amsmath,amsthm}
\usepackage[mathscr]{eucal}

\usepackage{makeidx}
\input{isomath}
\input{mathenv}
\input{syms}
\input{xy} % XY-pic package
\xyoption{all}
\usepackage{graphicx}

\usepackage{hyperref}
\usepackage{ifpdf}

%--------------------------------------------------------------------
\begin{document}


\end{document}
