IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
fincr wf214 1. i :
2. f : {f | i:{z:| z (i,j. i<j) i } if i=0 else {f(i-1)...} fi}
if i=0 else {f(i-1)...} fi Type
By:
AbReduce -2 THEN AbReduce -1 THEN Assert (j:{k:| k<i }. f(j) )