src/HOL/Wellfounded.thy
changeset 32704 6f0a56d255f4
parent 32463 3a0a65ca2261
child 32960 69916a850301
     1.1 --- a/src/HOL/Wellfounded.thy	Wed Sep 23 16:32:53 2009 +0200
     1.2 +++ b/src/HOL/Wellfounded.thy	Wed Sep 23 16:32:53 2009 +0200
     1.3 @@ -267,8 +267,8 @@
     1.4  
     1.5  lemma wfP_SUP:
     1.6    "\<forall>i. wfP (r i) \<Longrightarrow> \<forall>i j. r i \<noteq> r j \<longrightarrow> inf (DomainP (r i)) (RangeP (r j)) = bot \<Longrightarrow> wfP (SUPR UNIV r)"
     1.7 -  by (rule wf_UN [where I=UNIV and r="\<lambda>i. {(x, y). r i x y}", to_pred SUP_UN_eq2 pred_equals_eq])
     1.8 -    (simp_all add: bot_fun_eq bot_bool_eq)
     1.9 +  by (rule wf_UN [where I=UNIV and r="\<lambda>i. {(x, y). r i x y}", to_pred SUP_UN_eq2])
    1.10 +    (simp_all add: Collect_def)
    1.11  
    1.12  lemma wf_Union: 
    1.13   "[| ALL r:R. wf r;