diff -r e85c24717cad -r 30791e5a69c4 src/HOL/Auth/Yahalom2.thy
--- a/src/HOL/Auth/Yahalom2.thy	Thu Jun 26 13:20:50 1997 +0200
+++ b/src/HOL/Auth/Yahalom2.thy	Fri Jun 27 10:47:13 1997 +0200
@@ -57,8 +57,7 @@
            uses the new session key to send Bob his Nonce.*)
     YM4  "[| evs: yahalom lost;  A ~= Server;  A ~= B;  
              Says S A {|Nonce NB, Crypt (shrK A) {|Agent B, Key K, Nonce NA|},
-                        X|}
-               : set evs;
+                        X|}  : set evs;
              Says A B {|Agent A, Nonce NA|} : set evs |]
           ==> Says A B {|X, Crypt K (Nonce NB)|} # evs : yahalom lost"