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\documentclass{article}
\usepackage{amsmath}
\usepackage[mathletters]{ucs}
\usepackage[utf8x]{inputenc}
\usepackage{listings}
\lstnewenvironment{code}{\lstset{language=Haskell,basicstyle=\small\ttfamily}}{}
\setlength{\parindent}{0pt}
\setlength{\parskip}{6pt plus 2pt minus 1pt}
\setcounter{secnumdepth}{0}
\author{}
\begin{document}
\section{lhs test}
\verb!unsplit! is an arrow that takes a pair of values and combines
them to return a single value:
\begin{code}
unsplit :: (Arrow a) => (b -> c -> d) -> a (b, c) d
unsplit = arr . uncurry
-- arr (\op (x,y) -> x `op` y)
\end{code}
\verb!(***)! combines two arrows into a new arrow by running the
two arrows on a pair of values (one arrow on the first item of the
pair and one arrow on the second item of the pair).
\begin{verbatim}
f *** g = first f >>> second g
\end{verbatim}
Block quote:
\begin{quote}
foo bar
\end{quote}
\end{document}
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