How can you add vertical space between the word "Proof" and the actual start of the proof? This question shows how to start the proof on a new line, but I can't add space properly.
1 Answer
You can use the optional argument for \\
(I used 3ex
in my example, but change to the desired value):
\documentclass{article}
\usepackage{amsthm}
\usepackage{lipsum}% just to generate text for the example
\makeatletter
\renewenvironment{proof}[1][\proofname]{\par
\pushQED{\qed}%
\normalfont \topsep6\p@\@plus6\p@\relax
\trivlist
\item[\hskip\labelsep
\itshape
#1\@addpunct{.}]\mbox{}\\*[3ex]
}{%
\popQED\endtrivlist\@endpefalse
}
\makeatother
\begin{document}
\begin{proof}
\lipsum*[1]
\end{proof}
\end{document}