diff -r c56d27155041 -r 79136ce06bdb src/HOL/Decision_Procs/ferrack_tac.ML
--- a/src/HOL/Decision_Procs/ferrack_tac.ML	Tue Mar 03 12:14:52 2009 +1100
+++ b/src/HOL/Decision_Procs/ferrack_tac.ML	Tue Mar 03 17:05:18 2009 +0100
@@ -31,10 +31,8 @@
 val Suc_plus1 = @{thm Suc_plus1};
 val imp_le_cong = @{thm imp_le_cong};
 val conj_le_cong = @{thm conj_le_cong};
-val nat_mod_add_eq = @{thm mod_add1_eq} RS sym;
 val mod_add_left_eq = @{thm mod_add_left_eq} RS sym;
 val mod_add_right_eq = @{thm mod_add_right_eq} RS sym;
-val int_mod_add_eq = @{thm mod_add_eq} RS sym;
 val nat_div_add_eq = @{thm div_add1_eq} RS sym;
 val int_div_add_eq = @{thm zdiv_zadd1_eq} RS sym;
 val ZDIVISION_BY_ZERO_MOD = @{thm DIVISION_BY_ZERO} RS conjunct2;