User blog comment:Denis Maksudov/M-notation (new version)/@comment-10262436-20160620212735/@comment-28606698-20160621122515

I simply used this function as some known tool without own definition, because this function was defined and discussed  here. Now I  surprised, it is seems that among googologists unified opinion about this function does not exist, as well as universal definition is absent. I need a time to think. As I understand f_(ω+1) (ω)=φ(1,0,0) and I noticed that in this case it gives interesting possibility for remarkable growth.