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doc-src/Tutorial/Misc/Tree.thy
author
wenzelm
Wed, 08 Sep 1999 23:49:39 +0200
changeset 7527
9e2dddd8b81f
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
lemma less_add;
Tree = Main +
datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)
end