--- a/src/Pure/Isar/subgoal.ML Sun Feb 25 12:59:08 2018 +0100
+++ b/src/Pure/Isar/subgoal.ML Sun Feb 25 15:44:46 2018 +0100
@@ -108,9 +108,9 @@
(*
[x, A x]
:
- B x ==> C
+ B x \<Longrightarrow> C
------------------
- [!!x. A x ==> B x]
+ [\<And>x. A x \<Longrightarrow> B x]
:
C
*)