IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
no repeats cons11 1. T : Type
2. l : T List
3. x : T 4. i,j:. i<||l||+1 j<||l||+1 i = j[x / l][i] = [x / l][j]
5. i : 6. j : 7. i<||l||
8. j<||l||
9. i = j 10. [x / l][(i+1)] = [x / l][(j+1)]
l[i] = l[j]