doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Sun, 11 Feb 2001 16:31:21 +0100
changeset 11095 2ffaf1e1e101
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

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