将 \chapter 导入 amsart

Question

我想创建一个文档，其中包含出现amsart，但添加了\chapter命令（样式如amsbook，或不同）。我该怎么做？

我尝试通过各种和的组合让 LaTeX 加载amsbook和，但这似乎是一个失败的策略，因为它们都使用 定义了很多东西，导致无数的错误。我还意识到我不能反过来做，因为我想坚持定理在 中的样子，而不是在 中。我也知道我理论上可以使用 自己设计样式，但要获得 标题的间距需要大量的手动工作，我想避免手动执行此操作。amsart\LoadClass\documentclass\newcommandamsartamsbooktitlesecamsart

MWE 如下：

%\documentclass[openany,11pt]{amsbook}
\documentclass[11pt]{amsart}

\newtheorem{lemma}{Lemma}[chapter]
\newtheorem{theorem}[lemma]{Theorem}

\begin{document}

\chapter{My Fair Chapter}

\section{Lovely section}

\begin{theorem} % Should show "Theorem" in bold, unintended.
I love ducks.
\end{theorem}

\end{document}

Answer 1

我会修改你不喜欢的部分amsbook.cls。仅添加章节的基础设施就需要比 David Carlisle 添加的代码行多得多的代码行，因为还应考虑目录和其他列表。

\documentclass{amsbook}
\usepackage{etoolbox}

\makeatletter
\numberwithin{section}{chapter}
\def\@secnumfont{\mdseries}
\def\section{\@startsection{section}{1}%
  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
  {\normalfont\scshape\centering}}
\def\subsection{\@startsection{subsection}{2}%
  \z@{.5\linespacing\@plus.7\linespacing}{-.5em}%
  {\normalfont\bfseries}}

\patchcmd{\@thm}{\let\thm@indent\indent}{\let\thm@indent\noindent}{}{}
\patchcmd{\@thm}{\thm@headfont{\scshape}}{\thm@headfont{\bfseries}}{}{}

\makeatother

\newtheorem{thm}{Theorem}[section]

\begin{document}

\chapter{Chapter title}

\section{Title of this section}
\subsection{Title of this subsection}

\begin{thm}
Whatever the theorem says.
\end{thm}

\begin{thm}[Somebody]
Whatever the theorem says.
\end{thm}

\end{document}

\chapter{Chapter title}如果我删除自定义并加载，则会得到以下结果amsart。

Answer 2

\chapter只需从 amsbook复制相关的行即可

%\documentclass[openany,11pt]{amsbook}
\documentclass[11pt]{amsart}

\makeatletter

\def\chaptermark#1{}%whatever


\let\chapterrunhead\partrunhead

\def\chapter{%
  \if@openright\cleardoublepage\else\clearpage\fi
  \thispagestyle{plain}\global\@topnum\z@
  \@afterindenttrue \secdef\@chapter\@schapter}

\def\@chapter[#1]#2{\refstepcounter{chapter}%
  \ifnum\c@secnumdepth<\z@ \let\@secnumber\@empty
  \else \let\@secnumber\thechapter \fi
  \typeout{\chaptername\space\@secnumber}%
  \def\@toclevel{0}%
  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#2}%
  \else \@tocwriteb\tocchapter{chapter}{#2}\fi
  \chaptermark{#1}%
  \addtocontents{lof}{\protect\addvspace{10\p@}}%
  \addtocontents{lot}{\protect\addvspace{10\p@}}%
  \@makechapterhead{#2}\@afterheading}
\def\@schapter#1{\typeout{#1}%
  \let\@secnumber\@empty
  \def\@toclevel{0}%
  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#1}%
  \else \@tocwriteb\tocchapter{chapter}{#1}\fi
  \chaptermark{#1}%
  \addtocontents{lof}{\protect\addvspace{10\p@}}%
  \addtocontents{lot}{\protect\addvspace{10\p@}}%
  \@makeschapterhead{#1}\@afterheading}
\newcommand\chaptername{Chapter}

\def\@makechapterhead#1{\global\topskip 7.5pc\relax
  \begingroup
  \fontsize{\@xivpt}{18}\bfseries\centering
    \ifnum\c@secnumdepth>\m@ne
      \leavevmode \hskip-\leftskip
      \rlap{\vbox to\z@{\vss
          \centerline{\normalsize\mdseries
              \uppercase\@xp{\chaptername}\enspace\thechapter}
          \vskip 3pc}}\hskip\leftskip\fi
     #1\par \endgroup
  \skip@34\p@ \advance\skip@-\normalbaselineskip
  \vskip\skip@ }
\def\@makeschapterhead#1{\global\topskip 7.5pc\relax
  \begingroup
  \fontsize{\@xivpt}{18}\bfseries\centering
  #1\par \endgroup
  \skip@34\p@ \advance\skip@-\normalbaselineskip
  \vskip\skip@ }
\def\appendix{\par
  \c@chapter\z@ \c@section\z@
  \let\chaptername\appendixname
  \def\thechapter{\@Alph\c@chapter}}

\newcounter{chapter}

\newif\if@openright

\makeatother



\newtheorem{lemma}{Lemma}[chapter]
\newtheorem{theorem}[lemma]{Theorem}



\begin{document}

\chapter{My Fair Chapter}

\section{Lovely section}

\begin{theorem} % Should show "Theorem" in bold, unintended.
I love ducks.
\end{theorem}

\end{document}