IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
rel star finite11121211111 1. n : 2. R : nnProp
3. x : n 4. y : n 5. n@0 : 6. j:. j<n@0 (xR^jy) (k:(n+1). xR^ky)
7. L : n List
8. ||L|| = n@0+1
9. L[0] = x 10. last(L) = y 11. i:n@0. L[i] RL[(i+1)]
12. n@0n 13. i : (n@0+1)
14. j : (n@0+1)
15. i<j 16. L[i] = L[j]
||firstn(i+1;L) @ nth_tl(j+1;L)|| = n@0-(j-i)+1
By:
(RWO Thm*as,bs:T List. ||as @ bs|| = ||as||+||bs|| 0)
THEN
(RWO Thm*as:A List, n:{0...||as||}. ||firstn(n;as)|| = n 0)
THEN
(RWO Thm*as:A List, n:{0...||as||}. ||nth_tl(n;as)|| = ||as||-n 0)
Generated subgoals:
None
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html