src/HOL/Nat.thy

--- a/src/HOL/Nat.thy	Fri Dec 13 23:53:02 2013 +0100
+++ b/src/HOL/Nat.thy	Sat Dec 14 17:28:05 2013 +0100
@@ -1536,19 +1536,19 @@
 
 simproc_setup nateq_cancel_sums
   ("(l::nat) + m = n" | "(l::nat) = m + n" | "Suc m = n" | "m = Suc n") =
-  {* fn phi => fn ss => try Nat_Arith.cancel_eq_conv *}
+  {* fn phi => try o Nat_Arith.cancel_eq_conv *}
 
 simproc_setup natless_cancel_sums
   ("(l::nat) + m < n" | "(l::nat) < m + n" | "Suc m < n" | "m < Suc n") =
-  {* fn phi => fn ss => try Nat_Arith.cancel_less_conv *}
+  {* fn phi => try o Nat_Arith.cancel_less_conv *}
 
 simproc_setup natle_cancel_sums
   ("(l::nat) + m \<le> n" | "(l::nat) \<le> m + n" | "Suc m \<le> n" | "m \<le> Suc n") =
-  {* fn phi => fn ss => try Nat_Arith.cancel_le_conv *}
+  {* fn phi => try o Nat_Arith.cancel_le_conv *}
 
 simproc_setup natdiff_cancel_sums
   ("(l::nat) + m - n" | "(l::nat) - (m + n)" | "Suc m - n" | "m - Suc n") =
-  {* fn phi => fn ss => try Nat_Arith.cancel_diff_conv *}
+  {* fn phi => try o Nat_Arith.cancel_diff_conv *}
 
 ML_file "Tools/lin_arith.ML"
 setup {* Lin_Arith.global_setup *}