IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
prime divs prod121 1. p : 2. prime(p)
3. a1 : 4. a2 : 5. p | a1a2 6. p | a1 7. p | a2 p | a2
By:
(FwdThru Thm*a,p:. prime(p) (CoPrime(p,a) p | a) [6])
THEN
(FwdThru Thm*a,p:. prime(p) (CoPrime(p,a) p | a) [7])
THEN
(OnHyps [7;6] Thin)