diff -r 65d18005d802 -r 9e888d60d3e5 doc-src/TutorialI/Advanced/simp.thy --- a/doc-src/TutorialI/Advanced/simp.thy Fri Jan 05 18:32:33 2001 +0100 +++ b/doc-src/TutorialI/Advanced/simp.thy Fri Jan 05 18:32:57 2001 +0100 @@ -78,7 +78,7 @@ once they apply, they can be used forever. The simplifier is aware of this danger and treats permutative rules by means of a special strategy, called \bfindex{ordered rewriting}: a permutative rewrite -rule is only applied if the term becomes ``smaller'' (w.r.t.\ some fixed +rule is only applied if the term becomes ``smaller'' (with respect to a fixed lexicographic ordering on terms). For example, commutativity rewrites @{term"b+a"} to @{term"a+b"}, but then stops because @{term"a+b"} is strictly smaller than @{term"b+a"}. Permutative rewrite rules can be turned into