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src/HOL/Tools/Sledgehammer/sledgehammer_util.ML
changeset 36183 f723348b2231
parent 36170 0cdb76723c88
child 36378 f32c567dbcaa 
--- a/src/HOL/Tools/Sledgehammer/sledgehammer_util.ML	Fri Apr 16 16:08:43 2010 +0200
+++ b/src/HOL/Tools/Sledgehammer/sledgehammer_util.ML	Fri Apr 16 16:13:49 2010 +0200
@@ -33,7 +33,7 @@
   let
     fun aux seen "" = String.implode (rev seen)
       | aux seen s =
-      if String.isPrefix bef s then
+        if String.isPrefix bef s then
           aux seen "" ^ aft ^ aux [] (unprefix bef s)
         else
           aux (String.sub (s, 0) :: seen) (String.extract (s, 1, NONE))
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