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doc-src/Tutorial/Misc/Tree.thy
author
wenzelm
Fri, 01 Sep 2000 00:48:12 +0200
changeset 9780
d25d6a977ea6
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
added 'safe' method; 'auto' method: optional parms;
Tree = Main +
datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)
end