多线蕴涵链

Question

我是这个论坛的新手。是否可以在 latex 中创建如附图所示的蕴涵链？提前致谢。Tatin

Answer 1

% arara: pdflatex

\documentclass{article}
\usepackage{tikz-cd}
\usepackage{mathtools}
\newcommand*{\statement}[1]{\text{STATEMENT}\ #1}

\begin{document}
\begin{tikzcd}[every arrow/.append style={Rightarrow}]
    \statement{1} \arrow{r} & \statement{2} \arrow[out=0, in=0]{d} \\
    \statement{3} \arrow[out=180, in=180]{d} & \statement{4}\arrow{l} \\
    \statement{5} \arrow{r} & \statement{6} 
\end{tikzcd}
\end{document}