doc-src/Tutorial/Misc/Tree.thy
author paulson
Mon, 19 Apr 2004 13:49:35 +0200
changeset 14631 ec1e67f88f49
parent 5377 efb799c5ed3c
permissions -rw-r--r--
badly-needed updates
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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