\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":
Best Answer
The QED symbol is stored in
\qedsymbol
command and can be changed using\renewcommand
.To insert the QED symbol simply type
\qedsymbol
but if you want to move it to the end of line, use\qedhere
.