I have seen several posts on how to remove the qed symbol in a proof, but that affects all proof environments. I would like to know how to remove the qed symbol in a particular proof because I have one proof inside another.
30
31
Just locally change the meaning of \qedsymbol:
\documentclass{article}
\usepackage{amsthm}
\begin{document}
\begin{proof}
This has the QED symbol.
\end{proof}
\begin{proof}\renewcommand{\qedsymbol}{}
This hasn't.
\end{proof}
\begin{proof}
And this has it again.
\end{proof}
\end{document}
You can make a new environment for "inner proofs":
\newenvironment{innerproof}
{\renewcommand{\qedsymbol}{}\proof}
{\endproof}
which will do the same.
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Thanks for response. This works, but produce extra vertical space for the next paragraph when it has a proof inside another. Thanks a lot. – Juan Quispe Dec 25 '12 at 20:54
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@JuanQuispe Some way or another you have to tell your reader when the inner proof ends – egreg Dec 25 '12 at 20:58
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Yes. well, I found a way to do it, but is not very elegant. Merry Christmas – Juan Quispe Dec 25 '12 at 21:01
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4@JuanQuispe: Can you tell here? I think it would be interesting for other people also ... – Kurt Dec 25 '12 at 21:14
20
if you're using amsthm, you can do this:
\documentclass{article}
\usepackage{amsthm}
\begin{document}
\begin{proof}
This has the QED symbol.
\end{proof}
\begin{proof}\let\qed\relax
This hasn't.
\end{proof}
\begin{proof}
And this has it again.
\end{proof}
\end{document}
(thanks to egreg for providing an example that could be cribbed easily.)
0
I handle such cases as follows.
\begin{proof}\phantom{\qedhere}
No QED symbol.
\end{proof}
\begin{proof}
QED symbol.
\end{proof}
\begin{proof}
\begin{itemize}
\item \textellipsis
\item QED symbol at the end of the final item. \qedhere
\end{itemize}
\end{proof}
\begin{proof}\phantom{\qedhere}
\begin{equation}
\text{QED symbol at the end of the final equation.}\tag*{\qed}
\end{equation}
\end{proof}
\phantom\qedhereanywhere in the proof the qed symbol disappears. But I don't know if it's the best way of doing that. – Manuel Dec 25 '12 at 19:43