如何在投影仪中按部分对命题进行编号？

Question

我的演讲分为三部分，涉及三篇不同的论文。我想对每部分（论文）中的定理和命题进行编号。

Answer 1

您可以使用etoolbox包，使\part命令重置计数器：

\documentclass{beamer}
\usepackage{etoolbox}

\setbeamertemplate{theorems}[numbered]
\pretocmd{\part}{\setcounter{theorem}{0}}{}{}
\newtheorem{proposition}[theorem]{Proposition}

\begin{document}

\part{Test Part One}
\begin{frame}
\begin{theorem}
Test theorem in part one.
\end{theorem}
\begin{proposition}
Test proposition in part one.
\end{proposition}
\end{frame}    

\part{Test Part Two}
\begin{frame}
\begin{theorem}
Test theorem in part two.
\end{theorem}
\begin{proposition}
Test proposition in part two.
\end{proposition}
\end{frame}    

\end{document}