doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Tue, 19 Sep 2000 23:50:43 +0200
changeset 10029 b889474af53f
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

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