Text Formatting ⇒ definition number in round brackets

[mpaw]

Hello.

I need a way to set definition number (from subsection) in round brackets.

I.E.:

Definition (1.1.2)

Now I use such statement:

Code: Select all

\newtheorem{df}{Definition}[subsection]
\newtheorem{nt}[df]{Note}
\newtheorem{st}[df]{Statement}

It generates me theorems without round brackets. How can I add them?

Thanks
Mike

[rais]

something along the lines of

Code: Select all

\documentclass{article}
\usepackage{amsthm}
\newtheoremstyle{numparens}%
  {}% space above
  {}% space below
  {\itshape}% body font
  {}% indent amount
  {\bfseries}% theorem head font
  {}% punctuation after theorem head
  {\newline}% space after theorem head
  {\thmname{#1}~(\thmnumber{#2})~\thmnote{#3}}% theorem head spec

\theoremstyle{numparens}
\newtheorem{df}{Definition}[subsection]

\theoremstyle{plain}
\newtheorem{nt}[df]{Note}
\newtheorem{st}[df]{Statement}

\begin{document}
\subsection{foo}
\begin{df}[whatever]
$\pi$ is constant.
\end{df}
some text

\begin{nt}
some note
\end{nt}
some text

\begin{st}
some statement
\end{st}
some text
\end{document}

should do.

KR
Rainer