--- a/src/HOL/Real/HahnBanach/ZornLemma.thy Mon Feb 21 14:09:40 2000 +0100
+++ b/src/HOL/Real/HahnBanach/ZornLemma.thy Mon Feb 21 14:10:21 2000 +0100
@@ -20,7 +20,7 @@
==> EX y: S. ALL z: S. y <= z --> y = z";
proof (rule Zorn_Lemma2);
txt_raw {* \footnote{See
- \url{http://isabelle.in.tum.de/library/HOL/HOL-Real/Zorn.html}}*};
+ \url{http://isabelle.in.tum.de/library/HOL/HOL-Real/Zorn.html}} \isanewline *};
assume r: "!!c. c: chain S ==> EX x. x:c ==> Union c : S";
assume aS: "a:S";
show "ALL c:chain S. EX y:S. ALL z:c. z <= y";