doc-src/Tutorial/Misc/Tree.thy
author paulson
Mon, 12 Nov 2001 10:56:38 +0100
changeset 12156 d2758965362e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new-style numerals without leading #, along with generic 0 and 1

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