[plt-scheme] Natural numbers

[Stephen Bloch]

On Mar 12, 2009, at 3:39 AM, Bill wrote:

> Natural numbers starting at 1:
> ...
> o Giuseppe Peano, "The principles of arithmetic, presented by a new
>   method",

Really?  I don't know how many different presentations of Peano  
arithmetic I've read, and every one of them started at zero.  Does he  
say his system represents "the natural numbers, together with zero"  
or something like that?



Stephen Bloch
sbloch at adelphi.edu