IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
can reduce composite factor11 1. k : {2...}
2. g : {2..k}
3. x : {2..k}
4. y : {2..k}
5. xy 6. xy<k 7. y<xy h:({2..k}).
{2..k}(g) = {2..k}(h) & h(xy) = 0 & (u:{2..k}. xy<uh(u) = g(u))