doc-src/Tutorial/Misc/Tree.thy
author paulson
Wed, 11 Nov 1998 15:45:32 +0100
changeset 5846 d99feda2d226
parent 5377 efb799c5ed3c
permissions -rw-r--r--
tidied

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