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doc-src/TutorialI/Trie/Option2.thy
author
wenzelm
Tue, 29 Aug 2000 20:12:35 +0200
changeset 9728
1546ad1c7839
parent 8771
026f37a86ea7
permissions
-rw-r--r--
added antiquotation 'name' and option 'indent';
(*<*)
theory Option2 = Main:;
(*>*)
datatype 'a option = None | Some 'a;
(*<*)
end
(*>*)