2 \usepackage{../style}

     2 \usepackage{../style}

     3 

     3 

     4 \begin{document}

     4 \begin{document}

     5 

     5 

     6 \section*{Homework 7}

     6 \section*{Homework 7}

     7 

     9 

     8 \begin{enumerate}

    10 \begin{enumerate}

     9 \item Suppose the context-sensitive grammar

    11 \item Suppose the context-sensitive grammar

    10 

    12 

    11 \begin{center}

    13 \begin{center}