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doc-src/Tutorial/Misc/Tree.thy
author nipkow
Wed, 04 Aug 2004 19:09:58 +0200
changeset 15109 bba563cdd997
parent 5377 efb799c5ed3c
permissions -rw-r--r--
proof mod
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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