\documentclass[]{article} \usepackage[T1]{fontenc} \usepackage{lmodern} \usepackage{amssymb,amsmath} \usepackage{ifxetex,ifluatex} \usepackage{fixltx2e} % provides \textsubscript % use upquote if available, for straight quotes in verbatim environments \IfFileExists{upquote.sty}{\usepackage{upquote}}{} \ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex \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 microtype if available \IfFileExists{microtype.sty}{\usepackage{microtype}}{} \usepackage{color} \usepackage{fancyvrb} \DefineShortVerb[commandchars=\\\{\}]{\|} \DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}} % Add ',fontsize=\small' for more characters per line \newenvironment{Shaded}{}{} \newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{\textbf{{#1}}}} \newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.56,0.13,0.00}{{#1}}} \newcommand{\DecValTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}} \newcommand{\BaseNTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}} \newcommand{\FloatTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}} \newcommand{\CharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}} \newcommand{\StringTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}} \newcommand{\CommentTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textit{{#1}}}} \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, 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} \author{} \date{} \begin{document} \section{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{.} \FunctionTok{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}