IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
The section "mb_tree" of Mark Bickford's General Automata library ported from Nuprl5.
(creation_script.lisp)
Wed Oct 22 13:47:03 EDT 2003
IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html