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src/HOL/Library/Code_Binary_Nat.thy
changeset 60868 dd18c33c001e
parent 60500 903bb1495239
child 61076 bdc1e2f0a86a 
--- a/src/HOL/Library/Code_Binary_Nat.thy	Thu Aug 06 23:56:48 2015 +0200
+++ b/src/HOL/Library/Code_Binary_Nat.thy	Sat Aug 08 10:51:33 2015 +0200
@@ -137,7 +137,7 @@
   "divmod_nat (nat_of_num k) (nat_of_num l) = divmod k l"
   "divmod_nat m 0 = (0, m)"
   "divmod_nat 0 n = (0, 0)"
-  by (simp_all add: prod_eq_iff nat_of_num_numeral del: div_nat_numeral mod_nat_numeral)
+  by (simp_all add: prod_eq_iff nat_of_num_numeral)
 
 
 subsection \<open>Conversions\<close>
isabelle