--- a/doc-src/TutorialI/Misc/pairs.thy Mon Jun 23 15:26:49 2008 +0200
+++ b/doc-src/TutorialI/Misc/pairs.thy Mon Jun 23 15:26:51 2008 +0200
@@ -22,7 +22,8 @@
Products, like type @{typ nat}, are datatypes, which means
in particular that @{text induct_tac} and @{text case_tac} are applicable to
terms of product type.
-Both replace the term by a pair of variables.
+Both split the term into a number of variables corresponding to the tuple structure
+(up to 7 components).
\item
Tuples with more than two or three components become unwieldy;
records are preferable.