diff -r bb75c1cdf913 -r c839b38a1f32 doc-src/IsarImplementation/style.sty
--- a/doc-src/IsarImplementation/style.sty	Mon Sep 04 15:27:30 2006 +0200
+++ b/doc-src/IsarImplementation/style.sty	Mon Sep 04 16:28:27 2006 +0200
@@ -7,6 +7,7 @@
 
 %% references
 \newcommand{\secref}[1]{\S\ref{#1}}
+\newcommand{\chref}[1]{chapter~\ref{#1}}
 \newcommand{\figref}[1]{figure~\ref{#1}}
 
 %% glossary