--- a/src/FOLP/ex/intro.ML Fri Feb 11 18:51:00 2005 +0100
+++ b/src/FOLP/ex/intro.ML Sun Feb 13 17:15:14 2005 +0100
@@ -12,7 +12,7 @@
*)
-(**** Some simple backward proofs ****)
+(**** SOME simple backward proofs ****)
goal FOLP.thy "?p:P|P --> P";
by (rtac impI 1);