diff -r 53d18ab990f6 -r 923e4d0d36d5 src/HOLCF/Lift3.ML
--- a/src/HOLCF/Lift3.ML	Wed Oct 03 20:54:05 2001 +0200
+++ b/src/HOLCF/Lift3.ML	Wed Oct 03 20:54:16 2001 +0200
@@ -30,7 +30,7 @@
                  (fn _ => [Simp_tac 1]);
 val distinct2' = prove_goal thy "Def a ~= UU"
                  (fn _ => [Simp_tac 1]);
-val inject' = prove_goal thy "Def a = Def aa = (a = aa)"
+val inject' = prove_goal thy "(Def a = Def aa) = (a = aa)"
                (fn _ => [Simp_tac 1]);
 val rec1' = prove_goal thy "lift_rec f1 f2 UU = f1"
             (fn _ => [Simp_tac 1]);