IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
reduce fac pres isprimefac a,b:, f:({a..b}), j:{a..b}.
0<f(j)
is_prime_factorization(a; b; f)
is_prime_factorization(a; b; reduce_factorization(f; j))