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定理标题格式

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定理标题格式

我想显示一个定理标题，很简单：

\begin{theorem}[Name]

我明白了

Theorem 4.5 (Name).

但我不喜欢末尾的点。我希望它看起来像这样：

Theorem 4.5. (Name)

你能帮助我吗？

答案1

该amsthm包允许您定义自定义定理样式，并带有自定义标题规范。要获得所需的格式，您可以定义一种新样式，例如custom，然后theorem使用该样式声明环境。以下是示例：

\documentclass{article}
\usepackage{amsthm}

% Create a `custom` theorem style.
\newtheoremstyle{custom}
  {\topsep}   % Space above
  {\topsep}   % Space below
  {\itshape}  % Body font
  {0pt}       % Indent amount (empty value is the same as 0pt)
  {\bfseries} % Theorem head font
  {}          % Punctuation after theorem head
  {5pt plus 1pt minus 1pt} % Space after theorem head
  {\thmname{#1}\thmnumber{ #2}.\thmnote{ (#3)}} % Theorem head spec

% Create a `theorem` environment using the `custom` style.
\theoremstyle{custom}
\newtheorem{theorem}{Theorem}

\begin{document}

\begin{theorem}[Name]
This is the new theorem environment.
\end{theorem}

\end{document}

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