Math & Science ⇒ amsthm | Boldfaced Proof Label

[itatitl]

I am using the packages amsmath and amsthm for the document. I wanted the theorems and proofs (while using the environments thm, proof, etc) to be printed in the same bold font. I found a workaround at TeX.SX which suggested pasting the following to the preamble.

Code: Select all

\makeatletter
\renewenvironment{proof}[1][\proofname]{%
  \par\pushQED{\qed}\normalfont%
  \topsep6\p@\@plus6\p@\relax
  \trivlist\item[\hskip\labelsep\bfseries#1\@addpunct{.}]%
  \ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
}
\makeatother 

It works fine except that when I use the optional theorem name to print "Proof of Theorem ***", it doesn't print the theorem number in boldface. Any solution?


Thanks,

[Stefan Kottwitz]

For a specific problem, please post a minimal working example. Follow the link to learn why and how. For example, here one reason for this requirement is, that the description doesn't lead to the problem. When I tested, the theorem number was bold.

Here I show you my minimal example:

Code: Select all

\documentclass{article}
\usepackage{amsmath}
\usepackage{amsthm}
\newtheorem{theo}{Theorem}
\makeatletter
\renewenvironment{proof}[1][\proofname]{%
  \par\pushQED{\qed}\normalfont%
  \topsep6\p@\@plus6\p@\relax
  \trivlist\item[\hskip\labelsep\bfseries#1\@addpunct{.}]%
  \ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
}
\makeatother
\begin{document}
\begin{theo}
A statement which has to be proved.
\label{th:test}
\end{theo}
\begin{proof}[Proof of Theorem \ref{th:test}] Left as an exercise.
\end{proof}
\end{document}

proof.png (4.06 KiB) Viewed 9463 times

So, it seems that you do it in a different way, just show us how.

Stefan

[itatitl]

Thank you very much for the reply. It seems the problem is with the theoremref package.

Code: Select all

\documentclass[12pt,twoside,a4paper]{report}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{theoremref}
\newtheorem{theo}{Theorem}
\makeatletter
\renewenvironment{proof}[1][\proofname]{%
  \par\pushQED{\qed}\normalfont%
  \topsep6\p@\@plus6\p@\relax
  \trivlist\item[\hskip\labelsep\bfseries#1\@addpunct{.}]%
  \ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
}
\makeatother
\begin{document}
\begin{theo}
A statement which has to be proved.
\thlabel{th:test}
\end{theo}
\begin{proof}[Proof of  \thref{th:test}] Left as an exercise.
\end{proof}
\end{document}