\chapter{Proofs of Theorems}\label{AppA}
\myappendices{Appendix \ref{AppA} \byname{AppA}}
\begin{proof}[Proof of Theorem \ref{eipi}]
\begin{eqnarray}
e^{i\pi} &=& \cos(\pi) + i\sin(\pi)\\
&=& -1
\end{eqnarray} \qed
\end{proof}
