doc-src/Tutorial/Misc/tree
author paulson
Mon, 28 Feb 2000 10:48:39 +0100
changeset 8309 a054d5c98b21
parent 5377 efb799c5ed3c
permissions -rw-r--r--
more bijection theorems

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