IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
prime factorization includes prime divisors121112 1. a :
2. b :
3. f : {a..b}
4. p :
5. is_prime_factorization(a; b; f)
6. prime(p)
7. p | ( i:{a..b}. if(i))
8. i : {a..b}
9. p | if(i)
10. f(i) 0
11. p | i 12. prime(i)
13. p = i p {a..b} & 0<f(p)