doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Tue, 08 Jan 2002 00:02:25 +0100
changeset 12660 5743f2fba24e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
tuned;

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