例子

Question

$V$如果我认为和,之间的空格太多$V$,，那么减少空格的最佳方法是什么？使用 似乎很安全\kern，但使用 却不安全\hspace，因为如果使用 ，和\hspace之间的线可能会断开：$V$,

\documentclass{article}

\begin{document}

%line broken between $V$ and ,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
For all $V$\hspace{-1pt}, the theorem holds.

%line broken between "all" and "$V$\kern-1pt,"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
For all $V$\kern-1pt, the theorem holds.

\end{document}

但还有更好的方法吗？

Answer 1

我只是想\!在数学模式里面插入一个负空格V。

例子

\documentclass{article}
\pagestyle{empty}% for cropping
\newcommand\linefill{\par~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
\begin{document}
%line broken between $V$ and ,
\linefill
For all $V$\hspace{-1pt}, the theorem holds.
%line broken between "all" and "$V$\kern-1pt,"
\linefill
For all $V$\kern-1pt, the theorem holds.
%line broken as requested
\linefill
For all $V\!$, the theorem holds.
%line breaking without negative space
\linefill
For all $V$, the theorem holds.
\end{document}

输出

Answer 2

另一种方法是使用$V,$语义上可疑的斜体逗号，因为它使用数学斜体逗号而不是文本字体中的逗号，但它确实允许自动添加指定的字体字距（此处为 \kern-1.66667）