doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Fri, 21 May 2004 21:26:19 +0200
changeset 14790 0d984ee030a1
parent 5377 efb799c5ed3c
permissions -rw-r--r--
major cleanup of tsig datastructures and extend/merge operations; fixes old bugs in classes/arities code; proper treatment of nonterminals and syntax-only types;

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