IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
before-upto2 1. n : 2. x : n 3. y : n 4. x<y f:(2||upto(n)||). increasing(f;2) & (j:2. [x; y][j] = upto(n)[(f(j))])
By:
RWO Thm*n:. ||upto(n)|| ~ n 0 THEN InstConcl [i.if i=0x else y fi]