appendicesnumberingsectioning
I am trying to write an appendix where:
However, I can't get the appendix to be called anything, neither have I succeded in modifying the default numbering.
If your lemmas use the theorem counter as in the MWE below, you can insert the line
\counterwithin{theorem}{section}
just after the \appendix command. Note that you have to load the package chngcntr to be able to use \counterwithin.
MWE
\documentclass{article}
\usepackage{chngcntr}
\usepackage{lipsum} % just for the example
\newtheorem{theorem}{Theorem}[subsection]
\newtheorem{lemma}[theorem]{Lemma}
\begin{document}
\section{1st section}
\subsection{1st subsection}
\begin{lemma}
\lipsum[1]
\end{lemma}
\section{2nd section}
\subsection{2nd subsection}
\begin{lemma}
\lipsum[1]
\end{lemma}
\appendix
\counterwithin{theorem}{section}
\section{Appendix section}
\begin{lemma}
\lipsum[1]
\end{lemma}
\end{document}
Output
If your lemmas use a different counter, e.g. lemma, you have to change the mentioned line to, e.g.
\counterwithin{lemma}{section}
If you really need the appendices to be subsections you can change numbering of subsections using \renewcommand{\thesubsection}{\Alph{subsection}}:
\documentclass[11pt, a4paper, twoside]{article}
\usepackage{geometry}
\usepackage{lipsum}
\begin{document}
\tableofcontents
\section{First section}
\subsection{A subsection}
\lipsum[1]
\appendix
\section*{Appendices}
\addcontentsline{toc}{section}{Appendices}
\renewcommand{\thesubsection}{\Alph{subsection}}
\subsection{Appendix Subsection}
\subsection{Another appendix Subsection}
\end{document}
Best Answer
Would anything like this example match your needs?
Here's how it looks like:
If I understood correctly, you do not want to use any other
\sectionthan for the headings "Appendix" in itself, so a solution is to use\section*at this place and modify the command that issues subsection numbers by deleting the section number (otherwise you would get .A, .B,...) and printing the subsection counter in capital alphabetic form: this is what theline does.