IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
select upto2 1. m : 2. 0<m 3. n:(m-1). upto(m-1)[n] = n 4. n : m 5. m = 0
6. n<m-1
(upto(m-1) @ [(m-1)])[n] = n
By:
RWO
Thm*as,bs:T List, i:{||as||..(||as||+||bs||)}. (as @ bs)[i] = bs[(i-||as||)]
0
THEN
Try (RWO Thm*n:. ||upto(n)|| ~ n 0)