User blog comment:Kyodaisuu/Mashimo function/@comment-1605058-20140706065714/@comment-24061664-20140706181903

In Rado's sigma function, it is written that "The order-\(x\) busy beaver function has growth rate comparable to \(f_{\omega^\text{CK}_x}(n)\) in the fast-growing hierarchy." If \(f_{\omega^\text{CK}_x}(n)\) is not defined at all, this sentence means nothing...