Date: Jan 7, 2013 5:31 AM
Author: AP
Subject: Re: equivalence of truth of Riemann hypothesis

On Sat, 5 Jan 2013 12:36:32 -0800 (PST), Jean Dupont
<> wrote:

>> P.S. What is N_0 , 'N' being similar to '|N' ?
>N_O are the positive integers without zero, i.e. zero is included
>in the set of natural numbers, so if you want to exclude zero you write N_0

why not N-{0} or N^*