Text Formatting ⇒ ntheorem | Remove Indentation with Theorem Style "margin"

[voorneveld]

In the MWE below, I define an example environment with numbers in the margin. Its first line, however, is indented, rather than starting at the left margin. How to avoid this indentation? My guess \noindent does not work.

Code: Select all

\documentclass{article}

\usepackage{ntheorem}
\theoremstyle{margin}
\theoremheaderfont{\small\bfseries}
\theorembodyfont{\small}
\theoremsymbol{}
\newtheorem{exercise}{}[section]

\begin{document}
\setcounter{section}{1}
\begin{exercise}
\noindent First line.

\noindent Second line.
\end{exercise}
\end{document}

[localghost]

The cause seems to be that in every case there is some space reserved between the name of the theorem and the beginning text. Since you don't give a name to your exercise theorem environment, you have to correct this. Instead of the name just add some negative horizontal space.

Code: Select all

\newtheorem{exercise}{\hspace*{-0.45em}}[section]

The horizontal space is deliberately chosen in a unit that depends on the font size.


Thorsten

[voorneveld]

Thank you so much!

Mark