How would I define a proof environment that is basically used with
\begin{proof}
some proof here
\end{proof}
and it would be equivalent to:
\paragraph{Proof:} some proof here
\hfill \box
?
[Tex/LaTex] Defining the own proof environment
environmentstheorems
Related Solutions
If this is to apply to all the proof environments in your document, you can redefine the proof environment to add \\* after the proof name has been written; here's such a redefinition (a \mbox{} will be necessary before \\*):
\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{}\\*
}{%
\popQED\endtrivlist\@endpefalse
}
\makeatother
\begin{document}
\begin{proof}
\lipsum*[1]
\end{proof}
\end{document}
You can do this just by patching in a few optional commands to the proof environment itself.
\documentclass{article}
\usepackage{amsthm}
\newenvironment{proofoutline}
{\renewcommand\qedsymbol{}\proof[Proof outline]}
{\endproof}
\begin{document}
\begin{proofoutline}
This is not a proof.
\end{proofoutline}
\end{document}
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Best Answer
With LaTeX syntax:
I assume here that you mean
\hbox{}not\boxin your code. The\nullmacro is short for\hbox{}. The\boxis a TeX primitive and is more like\usebox.