diff -r aa2deef7cf47 -r ebd8ecacfba6 src/HOL/Fields.thy
--- a/src/HOL/Fields.thy	Wed Feb 18 22:46:48 2015 +0100
+++ b/src/HOL/Fields.thy	Thu Feb 19 11:53:36 2015 +0100
@@ -1204,7 +1204,9 @@
 
 end
 
+hide_fact (open) field_inverse field_divide_inverse field_inverse_zero
+
 code_identifier
   code_module Fields \<rightharpoonup> (SML) Arith and (OCaml) Arith and (Haskell) Arith
-
+ 
 end