User blog comment:Boboris02/Large number combinatorics II:Trying to prove something interesting/@comment-2033667-20170206081115/@comment-30118230-20170207174204

S is a string such that every element in it is a natural number.I did call it a set,but that's just because I wanted to describe it as a set with that property.It does seem useless.If you want I can remove it.Sorry for the confusion.

On the proof thing:I did consider adding more inbetweens before I made the post,which eventually lead to that part about all n,j,i but seems like I forgot.......