From: James Edward Gray II <james@...>
Date: 2005-12-31T06:06:27+09:00
Subject: Re: Numeric Maze (#60)

On Dec 30, 2005, at 2:57 PM, Christer Nilsson wrote:

> J. Ryan Sobol wrote:
>> Are negative numbers and zero allowed to be a starting point or
>> target?  I'm assuming no, but I'd like a confirmation.
>>
>> ~ ryan ~
>
> I made a quick analysis:
>
>    target
>    -  0  +
> - ok ok ok
> 0 no ok ok
> + no no ok
> start
>
> but, to make it simpler: let the domain be positive integers.
> It all depends on the operators used.
> With the proposed operators, it is possible to go from any positive
> number to any positive number.

Works for me.  Let's do that.

James Edward Gray II