updated
authorChristian Urban <urbanc@in.tum.de>
Fri, 12 Jan 2018 02:33:35 +0000
changeset 282 bfab5aded21d
parent 281 281ce101cda6
child 283 c4d821c6309d
updated
Literature/aho1990.pdf
thys/Exercises.thy
Binary file Literature/aho1990.pdf has changed
--- a/thys/Exercises.thy	Thu Dec 07 12:45:22 2017 +0000
+++ b/thys/Exercises.thy	Fri Jan 12 02:33:35 2018 +0000
@@ -75,6 +75,10 @@
       (\<not> zeroable r1 \<and> infinitestrings r2) \<or> (\<not> zeroable r2 \<and> infinitestrings r1)"
 | "infinitestrings (STAR r) = (\<not> atmostempty r)"
 
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 lemma Star_atmostempty:
   assumes "A \<subseteq> {[]}"
   shows "A\<star> \<subseteq> {[]}"