src/HOL/Fundamental_Theorem_Algebra.thy
changeset 29478 4a2482e16934
parent 29476 68e88293708f
child 29485 ec072307c69b
--- a/src/HOL/Fundamental_Theorem_Algebra.thy	Tue Jan 13 13:02:16 2009 -0800
+++ b/src/HOL/Fundamental_Theorem_Algebra.thy	Tue Jan 13 13:48:21 2009 -0800
@@ -134,7 +134,7 @@
 apply (simp add: offset_poly_eq_0_iff)
 done
 
-definition [code del]:
+definition
   "plength p = (if p = 0 then 0 else Suc (degree p))"
 
 lemma plength_eq_0_iff [simp]: "plength p = 0 \<longleftrightarrow> p = 0"