\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} \else \usepackage{fontspec} \fi \defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase} \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} \UseMicrotypeSet[protrusion]{basicmath} % disable protrusion for tt fonts }{} \PassOptionsToPackage{hyphens}{url} % url is loaded by hyperref \usepackage[unicode=true]{hyperref} \hypersetup{ pdfborder={0 0 0}, breaklinks=true} \urlstyle{same} % don't use monospace font for urls \usepackage{color} \usepackage{fancyvrb} \newcommand{\VerbBar}{|} \newcommand{\VERB}{\Verb[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{\ConstantTok}[1]{\textcolor[rgb]{0.53,0.00,0.00}{#1}} \newcommand{\CharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{#1}} \newcommand{\SpecialCharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{#1}} \newcommand{\StringTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{#1}} \newcommand{\VerbatimStringTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{#1}} \newcommand{\SpecialStringTok}[1]{\textcolor[rgb]{0.73,0.40,0.53}{#1}} \newcommand{\ImportTok}[1]{#1} \newcommand{\CommentTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textit{#1}}} \newcommand{\DocumentationTok}[1]{\textcolor[rgb]{0.73,0.13,0.13}{\textit{#1}}} \newcommand{\AnnotationTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{#1}}}} \newcommand{\CommentVarTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{#1}}}} \newcommand{\OtherTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{#1}} \newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.02,0.16,0.49}{#1}} \newcommand{\VariableTok}[1]{\textcolor[rgb]{0.10,0.09,0.49}{#1}} \newcommand{\ControlFlowTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{\textbf{#1}}} \newcommand{\OperatorTok}[1]{\textcolor[rgb]{0.40,0.40,0.40}{#1}} \newcommand{\BuiltInTok}[1]{#1} \newcommand{\ExtensionTok}[1]{#1} \newcommand{\PreprocessorTok}[1]{\textcolor[rgb]{0.74,0.48,0.00}{#1}} \newcommand{\AttributeTok}[1]{\textcolor[rgb]{0.49,0.56,0.16}{#1}} \newcommand{\RegionMarkerTok}[1]{#1} \newcommand{\InformationTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{#1}}}} \newcommand{\WarningTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{#1}}}} \newcommand{\AlertTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{#1}}} \newcommand{\ErrorTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{#1}}} \newcommand{\NormalTok}[1]{#1} \IfFileExists{parskip.sty}{% \usepackage{parskip} }{% else \setlength{\parindent}{0pt} \setlength{\parskip}{6pt plus 2pt minus 1pt} } \setlength{\emergencystretch}{3em} % prevent overfull lines \providecommand{\tightlist}{% \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}} \setcounter{secnumdepth}{0} % Redefines (sub)paragraphs to behave more like sections \ifx\paragraph\undefined\else \let\oldparagraph\paragraph \renewcommand{\paragraph}[1]{\oldparagraph{#1}\mbox{}} \fi \ifx\subparagraph\undefined\else \let\oldsubparagraph\subparagraph \renewcommand{\subparagraph}[1]{\oldsubparagraph{#1}\mbox{}} \fi % set default figure placement to htbp \makeatletter \def\fps@figure{htbp} \makeatother \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}