diff -r abba35b98892 -r ff05ab18ac5a doc-src/isar.sty
--- a/doc-src/isar.sty	Tue Aug 24 15:38:18 1999 +0200
+++ b/doc-src/isar.sty	Tue Aug 24 15:41:19 1999 +0200
@@ -13,7 +13,7 @@
 \newcommand{\indexisarcmd}[1]{\index{#1 (command)|bold}}
 \newcommand{\indexisarmeth}[1]{\index{#1 (method)|bold}}
 \newcommand{\indexisaratt}[1]{\index{#1 (attribute)|bold}}
-\newcommand{\indexisarreg}[1]{\index{#1 (register)|bold}}
+\newcommand{\indexisarreg}[1]{\index{#1 (result register)|bold}}
 
 \newcommand{\isarcmd}[1]{\isarkeyword{#1}}
 \newcommand{\isartrans}[2]{#1 \mathbin{\,\to\,} #2}