# Every counter with a fullstop at the end

Is there an easier way than redefining all commands to have every counter followed by a fullstop?

Chapter counter, theorem counter, figure counter etc. should always look like

1.3.4.

and not like the default

1.3.4

I use the following amsthm-theoremstyle:

\newtheoremstyle{break}
{\topsep}{\topsep}%
{\itshape}{}%
{\bfseries}{}%
{\newline}{}%
\theoremstyle{break}

• What document class are you using? – egreg Dec 10 '11 at 14:14
• If you use one of the KOMA-Script document classes, more than half the job will be done with the numbers=enddot class option. – Gonzalo Medina Dec 10 '11 at 14:16
• I use scrarcl. So numbers=enddot did a good job but still a few counters don't end with a dot e.g. theorem counters etc. – Meinzlein Dec 10 '11 at 14:30
• What package do you use to define your theorem-like structures? – Gonzalo Medina Dec 10 '11 at 14:31
• But then the counter for theorems will receive also a full stop (see my answer). If this is not the case, please add to your question a minimal version of your code. – Gonzalo Medina Dec 10 '11 at 14:39

Using one of the KOMA_Script document classes, the numbers=enddot class option will use a full stop for the counters for sectional units, figures, tables. If you load the amsthm package, counters for theorem-like structure will also have a full stop:

\documentclass[numbers=enddot]{scrartcl}
\usepackage{amsthm}

\newtheorem{theo}{Theorem}[section]

\begin{document}
\section{Test Section}
\subsection{Test Subsection}
\subsubsection{Test Subsubsection}
\begin{theo}
test
\end{theo}
\end{document}


Since you are using a custom theorem style, use the sixth mandatory argument of \newtheoremstyle to add the necessary punctuation:

\usepackage{amsthm}

\newtheoremstyle{break}
{\topsep}{\topsep}%
{\itshape}{}%
{\bfseries}{.}%
{\newline}{}%
\theoremstyle{break}
\newtheorem{theo}{Theorem}[section]


To satisfy the requirement mentioned in a comment for the end dot position when the optional argument is used, some additional work will have to be done using the last mandatory argument for \newtheoremstyle:

\documentclass[numbers=enddot]{scrartcl}
\usepackage{amsthm}

\newtheoremstyle{break}
{\topsep}{\topsep}%
{\itshape}{}%
{\bfseries}{}%
{\newline}{\thmname{#1}\thmnumber{ #2.}\thmnote{ \normalfont(#3)}}%
\theoremstyle{break}
\newtheorem{theo}{Theorem}[section]
\newtheoremstyle{breaknodot}
{\topsep}{\topsep}%
{\itshape}{}%
{\bfseries}{}%
{\newline}{\thmname{#1}\thmnote{ \normalfont(#3)}}%
\theoremstyle{breaknodot}
\newtheorem*{theo*}{Theorem}

\begin{document}
\section{Test Section}
\subsection{Test Subsection}
\subsubsection{Test Subsubsection}
\begin{theo}[label]
test
\end{theo}
\begin{theo}
test
\end{theo}
\begin{theo*}
test
\end{theo*}

\end{document}


• Sadly this doesn't work for me. Then I think it depends on the theoremstyle. See above for the style I use. – Meinzlein Dec 10 '11 at 14:41
• @Meinzlein: see my updated answer. – Gonzalo Medina Dec 10 '11 at 14:45
• Thanks for you're update. Now I'm quite there. The only thing is now, that Theorems without a number (begin{theo*}) will have an enddot as well, I only want them to have an enddot if theres a counter. – Meinzlein Dec 10 '11 at 14:48
• I don't know how you defined the theo* environment. Anyway, for unnumbered theorems, you can add a new style: \newtheoremstyle{breaknodot} {\topsep}{\topsep}% {\itshape}{}% {\bfseries}{}% {\newline}{}% \theoremstyle{breaknodot} \newtheorem*{theor}{Theorem} – Gonzalo Medina Dec 10 '11 at 14:54
• But then I would need to change the style for every single Theorem depending on wether it's numbered or not. I just defined theo as \newtheorem*{\theo*}{Theorem}. – Meinzlein Dec 10 '11 at 14:58