1.1 --- a/src/HOL/Real/HahnBanach/ZornLemma.thy Mon Feb 21 14:09:40 2000 +0100
1.2 +++ b/src/HOL/Real/HahnBanach/ZornLemma.thy Mon Feb 21 14:10:21 2000 +0100
1.3 @@ -20,7 +20,7 @@
1.4 ==> EX y: S. ALL z: S. y <= z --> y = z";
1.5 proof (rule Zorn_Lemma2);
1.6 txt_raw {* \footnote{See
1.7 - \url{http://isabelle.in.tum.de/library/HOL/HOL-Real/Zorn.html}}*};
1.8 + \url{http://isabelle.in.tum.de/library/HOL/HOL-Real/Zorn.html}} \isanewline *};
1.9 assume r: "!!c. c: chain S ==> EX x. x:c ==> Union c : S";
1.10 assume aS: "a:S";
1.11 show "ALL c:chain S. EX y:S. ALL z:c. z <= y";