doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Mon, 11 Sep 2000 17:35:50 +0200
changeset 9915 8de4ea6de3d0
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added THIS;

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