我喜欢这个想法绝对没有分页符环境，我想在需要时使用它来包装类似定理的环境（而不修改这些环境）。它确实有效，但问题是它会创建额外的垂直空间（前后）。
有没有办法来解决这个问题？
\documentclass{article}
\newtheorem{theorem}{Theorem}
\newenvironment{absolutelynopagebreak}
{\par\nobreak\vfil\penalty0\vfilneg
\vtop\bgroup}
{\par\xdef\tpd{\the\prevdepth}\egroup
\prevdepth=\tpd}
\begin{document}
\begin{theorem}
Statement 001.
\end{theorem}
\begin{theorem}
Statement 002.
\end{theorem}
\begin{absolutelynopagebreak}
\begin{theorem}
Statement 003.
\end{theorem}
\end{absolutelynopagebreak}
\begin{theorem}
Statement 004.
\end{theorem}
\begin{theorem}
Statement 005.
\end{theorem}
\end{document}
我能够使用vspace（大约）删除垂直空间，但它不可靠，因为它会随着文本大小的变化而变化。
\begin{absolutelynopagebreak}
\vspace{-1.3\baselineskip}
\begin{theorem}
Statement 006.
\end{theorem}
\vspace{-0.65\baselineskip}
\end{absolutelynopagebreak}
答案1
尝试这个：
\documentclass{article}
\usepackage{amsthm} % For theorem environments
\newtheorem{theorem}{Theorem}
\makeatletter
\newenvironment{absolutelynopagebreak}
{\par\@nobreaktrue\nobreak\penalty0}
{\par\@nobreakfalse}
\makeatother
\begin{document}
\begin{theorem}
Statement 001.
\end{theorem}
\begin{theorem}
Statement 002.
\end{theorem}
\begin{absolutelynopagebreak}
\begin{theorem}
Statement 003.
\end{theorem}
\end{absolutelynopagebreak}
\begin{theorem}
Statement 004.
\end{theorem}
\begin{theorem}
Statement 005.
\end{theorem}
\end{document}
环境使用\@nobreaktrue和\@nobreakfalse来管理分页行为。这是一种更直接的方法，应该对自然间距的干扰较少。该\penalty0命令用于阻止分页，而无需插入额外空间。