--- a/src/HOL/UNITY/Client.ML Fri Dec 04 10:45:20 1998 +0100
+++ b/src/HOL/UNITY/Client.ML Mon Dec 07 18:23:39 1998 +0100
@@ -131,13 +131,13 @@
by (Clarify_tac 1);
by (rtac Stable_transient_reachable_LeadsTo 1);
by (res_inst_tac [("k", "k")] transient_lemma 2);
-be Disjoint_States_eq 2;
+by (etac Disjoint_States_eq 2);
by (force_tac (claset() addDs [impOfSubs Increasing_size,
impOfSubs Increasing_Stable_less],
simpset()) 1);
by (rtac (make_elim (lemma1 RS guaranteesD)) 1);
by (Blast_tac 1);
-be Disjoint_States_eq 1;
+by (etac Disjoint_States_eq 1);
by (auto_tac (claset(),
simpset() addsimps [Invariant_eq_always, giv_meets_ask_def]));
by (ALLGOALS Force_tac);