2

I would like to number my table so that I have, e.g.

Theorem 1.3

Table 1.4

Lemma 1.5

How can I achieve this result? I am also using cleveref, so ideally \cref{ThatTable} would produce a linked ``Table 1.4'' when I am done as well.

jdc
  • 1,245
  • This requires either a common counter for theorems, lemma and tables or another, more sophisticated approach. Please provide a MWE in order to get some quick help –  Dec 09 '14 at 08:24

2 Answers2

3

You have to do nothing particular: \newtheorem{theorem}[table]{Theorem} will do.

\documentclass{book}

\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{cleveref}

\newtheorem{theorem}[table]{Theorem}

\begin{document}
\chapter{My content}

\begin{theorem}\label{A}
\end{theorem}

\begin{table}
  \caption{A dummy table}\label{B}
\end{table}

\begin{theorem}\label{C}
\end{theorem}

\begin{theorem}
\end{theorem}

See \cref{A}, \cref{B}, \cref{C}.

\begin{table}
  \caption{Another dummy table}
\end{table}

\end{document}

Note, however, that the floating nature of table may make the output to appear “out of sync”.

enter image description here

egreg
  • 1,121,712
  • Unfortunately, I get this. LaTeX Error: Command \theorem already defined. Or name \end... illegal, see p.192 of the manual. It seems to be in part because I have this: \newtheorem{theorem}[thm]{Theorem}. But if I remove that, the document doesn't seem to know what a Theorem is anymore. – jdc Dec 09 '14 at 10:11
  • @jdc Not with my example. – egreg Dec 09 '14 at 10:30
  • Yes, your example, all alone, does the right thing, but sadly, I am unable to integrate into my existing code in a way that doesn't give an error. I was wondering if you had any advice on how I can fix this problem. If not, I understand; in any event, I didn't mean to cast aspersions on your example, which works beautifully. – jdc Dec 09 '14 at 23:09
  • @jdc Sorry, but without seeing the code and the setup it's impossible to say anything sensible. Open a new question, with a MWE. – egreg Dec 09 '14 at 23:24
2

This could be achieved with the mutally assignment of associated counters (package assoccnt or xassoccnt)

Each time Theorem is increased, the table counter should be increased as well and vice versa, the lemma environment uses the Theorem counter, so this will be increased too.

The usage of this continous counting should prevent floating tables, as those might 'interrupt' the counting 

\documentclass{book}


\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{assoccnt}


\newtheorem{Theorem}{Theorem}
\newtheorem{lemma}[Theorem]{lemma}


\DeclareAssociatedCounters{Theorem}{table}%
\DeclareAssociatedCounters{table}{Theorem}%   



\begin{document}
\chapter{My content}

\begin{Theorem}
\end{Theorem}

\begin{table}
  \caption{A dummy table}
\end{table}


\begin{Theorem}
\end{Theorem}


\begin{Theorem}
\end{Theorem}



\begin{table}
  \caption{Another dummy table}
\end{table}

\begin{lemma}
 First lemma
\end{lemma}


\begin{table}
  \caption{Another dummy table}
\end{table}

\begin{Theorem}
\end{Theorem}




\end{document}

enter image description here