doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Thu, 27 Sep 2001 22:25:12 +0200
changeset 11607 c7e1db87b98a
parent 5377 efb799c5ed3c
permissions -rw-r--r--
unsymbolize;

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