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src/HOL/Power.thy
changeset 24286 7619080e49f0
parent 23544 4b4165cb3e0d
child 24376 e403ab5c9415 
--- a/src/HOL/Power.thy	Wed Aug 15 09:02:11 2007 +0200
+++ b/src/HOL/Power.thy	Wed Aug 15 12:52:56 2007 +0200
@@ -183,7 +183,7 @@
 apply (auto simp add: power_Suc abs_mult)
 done
 
-lemma zero_less_power_abs_iff [simp]:
+lemma zero_less_power_abs_iff [simp,noatp]:
      "(0 < (abs a)^n) = (a \<noteq> (0::'a::{ordered_idom,recpower}) | n=0)"
 proof (induct "n")
   case 0
isabelle