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doc-src/Tutorial/Misc/Tree.thy
author paulson
Mon, 23 Oct 2000 16:24:52 +0200
changeset 10294 2ec9c808a8a7
parent 5377 efb799c5ed3c
permissions -rw-r--r--
the Sets chapter and theories
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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
isabelle