--- a/src/HOL/Tools/groebner.ML Wed Dec 20 14:53:34 2017 +0100
+++ b/src/HOL/Tools/groebner.ML Wed Dec 20 19:17:37 2017 +0100
@@ -899,7 +899,7 @@
| Const (\<^const_name>\<open>HOL.conj\<close>, _) $ _ $ _ => find_args bounds tm
| Const (\<^const_name>\<open>HOL.disj\<close>, _) $ _ $ _ => find_args bounds tm
| Const (\<^const_name>\<open>HOL.implies\<close>, _) $ _ $ _ => find_args bounds tm
- | \<^term>\<open>op \<Longrightarrow>\<close> $_$_ => find_args bounds tm
+ | \<^term>\<open>Pure.imp\<close> $_$_ => find_args bounds tm
| Const("op ==",_)$_$_ => find_args bounds tm (* FIXME proper const name *)
| \<^term>\<open>Trueprop\<close>$_ => find_term bounds (Thm.dest_arg tm)
| _ => raise TERM ("find_term", []))