doc-src/Tutorial/Misc/Tree.thy
author paulson
Fri, 11 Dec 1998 10:41:53 +0100
changeset 6024 cb87f103d114
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new Close_locale synatx

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