doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Fri, 06 Oct 2000 17:35:58 +0200
changeset 10168 50be659d4222
parent 5377 efb799c5ed3c
permissions -rw-r--r--
final tuning;

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