Re: Alternative Goldbach?

On Thu, 01 Sep 2005 14:40:05 GMT, "Norm Dresner" <ndrez@xxxxxxx>
wrote:

>What, if anything, is known about the relationship between
>a) Goldbach -- Every even number > 2 can be expressed as the sum of two
>primes
>
>and
>
>b) Alt. G -- Every even number can be expressed as the difference of two
>primes
>
>and
>
>c) Comb Alt. G. -- Every even number can be expressed as the sum or
>difference (or both) of two primes
>
>Thanks
> Norm

You can say this:

For every even positive integer n, some mutiple of n is a difference
of 2 primes.

(since there are infinitely primes in the arithmetic progression kn+1,
k=1,2,3...)

quasi
.

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