The default value of *LaTeX-section-label is:*
(("part" . "part:")
("chapter" . "chap:")
("section" . "sec:")
("subsection" . "sec:")
("subsubsection" . "sec:"))
However, *for chapter*, when typing C-c C-s, we get cha instead of chap:.
\chapter{asdf}
\label{cha:asdf}
--
Best,
Shiyao
