我们如何获得数字后没有点的定理环境？

Question

amsthm 下的标准定理环境有定理 n。我们怎么才能只有定理 n，而 n 后面没有标点符号呢？

Answer 1

您可以在以下位置找到默认参数https://tex.stackexchange.com/a/17555/4427

\newtheoremstyle{plain}
  {\topsep}   % ABOVESPACE
  {\topsep}   % BELOWSPACE
  {\itshape}  % BODYFONT
  {0pt}       % INDENT (empty value is the same as 0pt)
  {\bfseries} % HEADFONT
  {.}         % HEADPUNCT
  {5pt plus 1pt minus 1pt} % HEADSPACE
  {}          % CUSTOM-HEAD-SPEC

在此基础上定义你自己的定理样式。例如：

\documentclass{article}
\usepackage{amsthm}

\newtheoremstyle{plainnopunct}
  {\topsep}   % ABOVESPACE
  {\topsep}   % BELOWSPACE
  {\itshape}  % BODYFONT
  {0pt}       % INDENT (empty value is the same as 0pt)
  {\bfseries} % HEADFONT
  {}          % HEADPUNCT
  {5pt plus 1pt minus 1pt} % HEADSPACE
  {}          % CUSTOM-HEAD-SPEC
\newtheoremstyle{definitionnopunct}
  {\topsep}   % ABOVESPACE
  {\topsep}   % BELOWSPACE
  {\upshape}  % BODYFONT
  {0pt}       % INDENT (empty value is the same as 0pt)
  {\bfseries} % HEADFONT
  {}          % HEADPUNCT
  {5pt plus 1pt minus 1pt} % HEADSPACE
  {}          % CUSTOM-HEAD-SPEC

\theoremstyle{plainnopunct}
\newtheorem{theorem}{Theorem}

\theoremstyle{definitionnopunct}
\newtheorem{definition}[theorem]{Definition}

\begin{document}

\begin{theorem}
This is a theorem statement.
\end{theorem}

\begin{definition}
This is a \emph{definition}.
\end{definition}

\begin{theorem}[Attribution]
This is a theorem statement.
\end{theorem}

\end{document}