--- a/src/HOL/Groebner_Basis.thy Thu Nov 06 16:10:33 2014 +0100
+++ b/src/HOL/Groebner_Basis.thy Fri Nov 07 15:19:30 2014 +0100
@@ -6,7 +6,6 @@
theory Groebner_Basis
imports Semiring_Normalization Parity
-keywords "try0" :: diag
begin
subsection {* Groebner Bases *}