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\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{verbatim}
unsplit :: (Arrow a) =&gt; (b -&gt; c -&gt; d) -&gt; a (b, c) d
unsplit = arr . uncurry       
          -- arr (\op (x,y) -&gt; x `op` y) 
\end{verbatim}
\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 &gt;&gt;&gt; second g
\end{verbatim}
Block quote:

\begin{quote}
foo bar

\end{quote}

\end{document}

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