梅威瑟:
\documentclass{article}
\usepackage[a4paper]{geometry}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{xcolor}
\usepackage{minted}
\begin{document}
\begin{minted}[breaklines]{haskell}
-- `∀x. (id <$> x) ≅ x`
\end{minted}
\end{document}
编译良好:
xelatex --shell-escape ./haskell.tex
输出文件中缺少符号∀
和。≅