doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Thu, 21 Feb 2002 18:19:34 +0100
changeset 12916 4ac388e02b74
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated title;

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