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src/Pure/Isar/outer_syntax.scala
changeset 63479 464ef556bd21
parent 63460 f41070510341
child 63528 0f39f59317c1 
--- a/src/Pure/Isar/outer_syntax.scala	Wed Jul 13 19:10:35 2016 +0200
+++ b/src/Pure/Isar/outer_syntax.scala	Wed Jul 13 19:36:47 2016 +0200
@@ -174,9 +174,9 @@
             if (keywords.is_command(tok, Keyword.theory_goal)) (2, 1)
             else if (keywords.is_command(tok, Keyword.theory)) (1, 0)
             else if (keywords.is_command(tok, Keyword.proof_open)) (y + 2, y + 1)
-            else if (keywords.is_command(tok, Keyword.PRF_BLOCK == _)) (y + 2, y + 1)
-            else if (keywords.is_command(tok, Keyword.QED_BLOCK == _)) (y - 1, y - 2)
-            else if (keywords.is_command(tok, Keyword.PRF_CLOSE == _)) (y, y - 1)
+            else if (keywords.is_command(tok, Set(Keyword.PRF_BLOCK))) (y + 2, y + 1)
+            else if (keywords.is_command(tok, Set(Keyword.QED_BLOCK))) (y - 1, y - 2)
+            else if (keywords.is_command(tok, Set(Keyword.PRF_CLOSE))) (y, y - 1)
             else if (keywords.is_command(tok, Keyword.proof_close)) (y + 1, y - 1)
             else if (keywords.is_command(tok, Keyword.qed_global)) (1, 0)
             else (x, y)
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