IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
hzero rep def equal(zero_rep,select(x:hind. all(y:hind. not(equal(x,suc_rep(y))))))
By:
HN THEN StrongAuto THEN Unab [`hzero_rep`] THEN HN THEN StrongAuto