doc-src/Tutorial/Misc/Tree.thy
author paulson
Thu, 17 Oct 2002 10:56:00 +0200
changeset 13652 172600c40793
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fixed comments and types

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