latex中使用proof证明时如何去掉QED（结尾的方括号）

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原文在here

举例说明吧

例1，

\documentclass{article}\usepackage{amsthm}\begin{document}\begin{proof}This has the QED symbol.\end{proof}\begin{proof}<span style="background-color: rgb(255, 0, 0);">\renewcommand{\qedsymbol}{}</span>This hasn't.\end{proof}\begin{proof}And this has it again.\end{proof}\end{document}

输出结果

例2：if you're using amsthm, you can do this:

<span style="color:#393318;background-color: rgba(255, 255, 255, 0.529412);">\documentclass{article}\usepackage{amsthm}\begin{document}\begin{proof}This has the QED symbol.\end{proof}\begin{proof}</span><strong style="background-color: rgb(204, 0, 0);">\let\qed\relax</strong><span style="color:#393318;background-color: rgba(255, 255, 255, 0.529412);">This hasn't.\end{proof}\begin{proof}And this has it again.\end{proof}\end{document}</span>

注意红色部分

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