我想在定理和前面一行之间添加一些空格。
我使用titlesec和amsthm自定义间距，但是当定理就在小节之后时，定理之前所需的间距就不会被遵守。
如何增加章节/小节标题和定理之间的空间？
以下是显示该问题的 MWE。
\documentclass{article}
% -------------------------------------------------- %
\usepackage[explicit]{titlesec}
\titleformat{\section}
{\bigskip\bfseries\large}
{\Roman{section}. }
{0em}
{#1}
\titleformat{\subsection}
{\smallskip\bfseries}
{\arabic{subsection}) }
{0em}
{#1}
\titleformat{\subsubsection}
{\itshape}
{{\normalfont\alph{subsubsection})}}
{.5em}
{#1}
\titlespacing{\section}{0.5ex}{*1}{1ex}
\titlespacing{\subsection}{0.5ex}{*2}{*0}
\titlespacing{\subsubsection}{0.5ex}{*0}{*0}
% -------------------------------------------------- %
% -------------------------------------------------- %
\usepackage{amsthm}
\newtheoremstyle{theorem-style}
{3pt}% space before
{3pt}% space after
{\itshape}
{}% indent
{\bfseries}% header font
{.\vspace{0.5mm}}% punctuation
{\newline}% after theorem header
{}% header specification (empty for default)
\theoremstyle{theorem-style}
\newtheorem*{proposition}{Proposition}
% -------------------------------------------------- %
\begin{document}
\section{Section}
\subsection{Subsection}
\subsection{Subsection}
\subsection{Subsection}
\begin{proposition}
This proposition is too close to the title.
\end{proposition}
\subsection{Subsection}
Some text.
\begin{proposition}
This proposition is not too close to the preceding line.
\end{proposition}
\end{document}
编辑
根据评论中给出的想法，我尝试过
\titleformat{\subsection}
{\smallskip\bfseries}
{\arabic{subsection}) }
{0em}
{#1}
[\strut\vspace{-\baselineskip}]
但它不起作用。
答案1
\@afterheading期望后面跟着一个普通段落。这将提供一个不可见的段落。仅在需要时使用。
\documentclass{article}
% -------------------------------------------------- %
\usepackage[explicit]{titlesec}
\titleformat{\section}
{\bigskip\bfseries\large}
{\Roman{section}. }
{0em}
{#1}
\titleformat{\subsection}
{\smallskip\bfseries}
{\arabic{subsection}) }
{0em}
{#1}
\titleformat{\subsubsection}
{\itshape}
{{\normalfont\alph{subsubsection})}}
{.5em}
{#1}
\titlespacing{\section}{0.5ex}{*1}{1ex}
\titlespacing{\subsection}{0.5ex}{*2}{*0}
\titlespacing{\subsubsection}{0.5ex}{*0}{*0}
% -------------------------------------------------- %
% -------------------------------------------------- %
\usepackage{amsthm}
\newtheoremstyle{theorem-style}
{3pt}% space before
{3pt}% space after
{\itshape}
{}% indent
{\bfseries}% header font
{.\vspace{0.5mm}}% punctuation
{\newline}% after theorem header
{}% header specification (empty for default)
\theoremstyle{theorem-style}
\newtheorem*{proposition}{Proposition}
% -------------------------------------------------- %
\begin{document}
\section{Section}
\subsection{Subsection}
\subsection{Subsection}
\subsection{Subsection}\strut\vspace{-\baselineskip}
\begin{proposition}
This proposition is too close to the title.
\end{proposition}
\subsection{Subsection}
Some text.
\begin{proposition}
This proposition is not too close to the preceding line.
\end{proposition}
\end{document}