IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
hsimp rec wd11 1. 'a : S
2. x : 'a 3. f : 'a'a 4. n : ncompose(f;n;x) = (@fun:'a. (simp_rec_rel(fun,x,f,n+1)))(n)
By:
Unab [`bchoose`] THEN ChooseDC THEN Simp THEN StrongAuto THEN HN THEN StrongAuto
THEN
Try (Complete (Unfold `label` 0))