doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Thu, 24 Jan 2002 22:41:44 +0100
changeset 12846 0fce95478e19
parent 5377 efb799c5ed3c
permissions -rw-r--r--
copy_styles replaces overly conservative update_styles;

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