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\documentclass[]{article}
\usepackage{lmodern}
\usepackage{amssymb,amsmath}
\usepackage{ifxetex,ifluatex}
\usepackage{fixltx2e} % provides \textsubscript
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\else % if luatex or xelatex
\ifxetex
\usepackage{mathspec}
\usepackage{xltxtra,xunicode}
\else
\usepackage{fontspec}
\fi
\defaultfontfeatures{Mapping=tex-text,Scale=MatchLowercase}
\newcommand{\euro}{€}
\fi
% use upquote if available, for straight quotes in verbatim environments
\IfFileExists{upquote.sty}{\usepackage{upquote}}{}
% use microtype if available
\IfFileExists{microtype.sty}{\usepackage{microtype}}{}
\usepackage{color}
\usepackage{fancyvrb}
\newcommand{\VerbBar}{|}
\newcommand{\VERB}{\Verb[commandchars=\\\{\}]}
\DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
% Add ',fontsize=\small' for more characters per line
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\newcommand{\OtherTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{{#1}}}
\newcommand{\AlertTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
\newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.02,0.16,0.49}{{#1}}}
\newcommand{\RegionMarkerTok}[1]{{#1}}
\newcommand{\ErrorTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
\newcommand{\NormalTok}[1]{{#1}}
\ifxetex
\usepackage[setpagesize=false, % page size defined by xetex
unicode=false, % unicode breaks when used with xetex
xetex]{hyperref}
\else
\usepackage[unicode=true]{hyperref}
\fi
\hypersetup{breaklinks=true,
bookmarks=true,
pdfauthor={},
pdftitle={},
colorlinks=true,
citecolor=blue,
urlcolor=blue,
linkcolor=magenta,
pdfborder={0 0 0}}
\urlstyle{same} % don't use monospace font for urls
\setlength{\parindent}{0pt}
\setlength{\parskip}{6pt plus 2pt minus 1pt}
\setlength{\emergencystretch}{3em} % prevent overfull lines
\setcounter{secnumdepth}{0}
\date{}
\begin{document}
\section{lhs test}\label{lhs-test}
\texttt{unsplit} is an arrow that takes a pair of values and combines them to
return a single value:
\begin{Shaded}
\begin{Highlighting}[]
\OtherTok{unsplit ::} \NormalTok{(}\DataTypeTok{Arrow} \NormalTok{a) }\OtherTok{=>} \NormalTok{(b }\OtherTok{->} \NormalTok{c }\OtherTok{->} \NormalTok{d) }\OtherTok{->} \NormalTok{a (b, c) d}
\NormalTok{unsplit }\FunctionTok{=} \NormalTok{arr }\FunctionTok{.} \NormalTok{uncurry}
\CommentTok{-- arr (\textbackslash{}op (x,y) -> x `op` y)}
\end{Highlighting}
\end{Shaded}
\texttt{(***)} 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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