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src/ZF/UNITY/Monotonicity.thy
changeset 26059 b67a225b50fd
parent 26056 6a0801279f4c
child 32960 69916a850301 
--- a/src/ZF/UNITY/Monotonicity.thy	Mon Feb 11 21:32:11 2008 +0100
+++ b/src/ZF/UNITY/Monotonicity.thy	Mon Feb 11 21:32:12 2008 +0100
@@ -69,7 +69,7 @@
 lemma take_mono_left:
      "[| i le j; xs \<in> list(A); j \<in> nat |]
       ==> <take(i, xs), take(j, xs)> \<in> prefix(A)"
-by (blast intro: Nat_ZF.le_in_nat take_mono_left_lemma) 
+by (blast intro: le_in_nat take_mono_left_lemma) 
 
 lemma take_mono_right:
      "[| <xs,ys> \<in> prefix(A); i \<in> nat |]
isabelle