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doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Wed, 25 Nov 1998 14:11:24 +0100
changeset 5966 60f80b2a2777
parent 5377 efb799c5ed3c
permissions -rw-r--r--
removed prs / prs_fn (broken, because it did not include \n in its semantics, forcing writeln to add one uncoditionally); replaced prs_fn by writeln fn;
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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