Date: Feb 18, 2013 1:19 PM Author: William Hughes Subject: Re: Matheology § 222 Back to the roots

> > Is there a potentially infinite sequence,

> > x, such that the nth FIS of x consists of

> > n 1's

> Yes, of course

Let y be a potentially infinite sequence

where the nth FIS of y consists of a 1 followed

by n-1 0's

Are x and y coFIS?