doc-src/Tutorial/Misc/tree
author oheimb
Thu, 15 Feb 2001 15:56:51 +0100
changeset 11132 09622301ca07
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added trial proof

datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)