doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Thu, 13 Jul 2000 23:07:10 +0200
changeset 9306 d0ef4a41ae63
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permissions -rw-r--r--
defs (overloaded);
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Tree = Main +
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datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)
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end