Defining a null environment

Question

I am writing a mathematical document and I want to make a overview document, in which I only present the theorems and definitions and not the proofs, so I thought that I can change the environment proof to a null environment, which basically ignores the proofs or replaces them with one single space, or anything similar. I thought using the comment package and tried \renewenvironment{proof}{\begin{comment} }{ \end{comment}} but as it turns out LaTeX interprets }{ as comment.

How can I achieve this neatly or is there a way to turn the proof off by amsmath?

Answer 1

Perhaps this is a solution: \gobble the content away with a \RenewEnviron{proof}{}{} that has no \BODY command, i.e. the \BODY is 'thrown away'.

I used the first proof environment to show some content and then redefined proof, the second content isn't display any longer then.

\documentclass{article}

\usepackage{amsthm}

\usepackage{environ}

\begin{document}

\begin{proof}
Brontosaurs were large
\end{proof}


\RenewEnviron{proof}{%
% How not to be seen?
}{}

\begin{proof}
Brontosaurs were large
\end{proof}



\end{document}