IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
split factor1 char111 1. k : {2...}
2. g : {2..k}
3. x : {2..k}
4. xx<k 5. x<xx 6. h : {2..k}
7. h = split_factor1(g; x)
8. h(xx) = 0
9. h(x) = g(x)+g(xx)+g(xx)
10. u:{2..k}. u = xu = xxh(u) = g(u)
xg(x)(xx)g(xx) = xh(x)(xx)h(xx)
By:
{Eliminate h in favor of g. } Subst: Hyp:8 ...w THEN Subst: Hyp:9 ...w