Refer to major premise of induction rule via "thm_style prem1".
1.1 --- a/doc-src/TutorialI/Inductive/Star.thy Thu Jul 19 15:33:27 2007 +0200
1.2 +++ b/doc-src/TutorialI/Inductive/Star.thy Thu Jul 19 15:35:00 2007 +0200
1.3 @@ -54,8 +54,8 @@
1.4 To prove transitivity, we need rule induction, i.e.\ theorem
1.5 @{thm[source]rtc.induct}:
1.6 @{thm[display]rtc.induct}
1.7 -It says that @{text"?P"} holds for an arbitrary pair @{text"(?xb,?xa) \<in>
1.8 -?r*"} if @{text"?P"} is preserved by all rules of the inductive definition,
1.9 +It says that @{text"?P"} holds for an arbitrary pair @{thm_style prem1 rtc.induct}
1.10 +if @{text"?P"} is preserved by all rules of the inductive definition,
1.11 i.e.\ if @{text"?P"} holds for the conclusion provided it holds for the
1.12 premises. In general, rule induction for an $n$-ary inductive relation $R$
1.13 expects a premise of the form $(x@1,\dots,x@n) \in R$.