IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
decidable all int seg111 1. i :
2. j :
3. F : {i..j}Prop
4. k:{i..j}. Dec(F(k))
5. Dec(k:{i..j}. F(k))
6. Dec((k:{i..j}. F(k)))
Dec(k:{i..j}. F(k))
By:
Rewrite-1 by Thm*Q:(TProp). (x:T. Q(x)) (x:T. Q(x))