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src/HOL/NumberTheory/BijectionRel.thy
changeset 22274 ce1459004c8d
parent 21404 eb85850d3eb7
child 23755 1c4672d130b1 
--- a/src/HOL/NumberTheory/BijectionRel.thy	Wed Feb 07 17:46:03 2007 +0100
+++ b/src/HOL/NumberTheory/BijectionRel.thy	Wed Feb 07 17:51:38 2007 +0100
@@ -71,7 +71,7 @@
       "!!F a. F \<subseteq> A ==> a \<in> A ==> a \<notin> F ==> P F ==> P (insert a F)"
   shows "P F"
   using major subs
-  apply (induct set: Finites)
+  apply (induct set: finite)
    apply (blast intro: cases)+
   done
isabelle