doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Tue, 04 Dec 2001 02:01:31 +0100
changeset 12355 c8d3c3d09080
parent 5377 efb799c5ed3c
permissions -rw-r--r--
hyp_subst_tac';

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