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\begin{document}

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\newtheorem{theorem}{Theorem}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{claim}[theorem]{Claim}
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\begin{table}\centering
\begin{tabular*}{6.5in}{@{\extracolsep{\fill}}|llr|} \hline
Com S 611 & \hspace*{0.5 in} & Spring Semester 2007 \\ 
Discrete Algorithms for Mobile and Wireless Networks & & \\
 & & \\
\multicolumn{3}{|c|}{
{Lecture 4: Thursday, 25th January 2007}} \\
 & & \\
Instructor: Soma Chaudhuri & & Scribe: Aaron Sterling \\ \hline
\end{tabular*}
\end{table}

\section{Introduction}

Initial text goes here.

\section{A new topic}

\subsection{A subtopic}

Here is an enumeration.

\begin{enumerate}
\item the next item is in math mode
\item $lim_{n \rightarrow \infty} (1 - 1/n)^{n-1}$
\end{enumerate}

\noindent
Here is an itemization.

\begin{itemize}
\item item 1
\item item 2
\end{itemize}

\section{another new topic}

\begin{definition}
We define something here.
\end{definition}

Here is our first theorem.

\begin{theorem}
The statement of the theorem goes here.
\end{theorem}

\begin{proof}
The proof goes here.
\end{proof}

\end{document}