doc-src/Tutorial/Misc/Tree.thy
author nipkow
Mon, 04 Jan 1999 15:08:40 +0100
changeset 6056 b21813d1b701
parent 5377 efb799c5ed3c
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Version 1 of linear arithmetic for nat.
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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