doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Sun, 06 Jan 2002 13:48:18 +0100
changeset 12648 16d4b8c09086
parent 5377 efb799c5ed3c
permissions -rw-r--r--
some more text;

Tree = Main +
datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)
end