1.1 --- a/doc-src/TutorialI/CTL/PDL.thy	Tue Nov 07 09:59:43 2006 +0100
     1.2 +++ b/doc-src/TutorialI/CTL/PDL.thy	Tue Nov 07 11:28:25 2006 +0100
     1.3 @@ -102,7 +102,7 @@
     1.4  which is proved by @{term lfp}-induction:
     1.5  *}
     1.6  
     1.7 - apply(erule lfp_induct)
     1.8 + apply(erule lfp_induct_set)
     1.9    apply(rule mono_ef)
    1.10   apply(simp)
    1.11  (*pr(latex xsymbols symbols);*)