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Re: How to check whether an infinite set is closed under


"Given k positive numbers a_1<a_2<a_3<...<a_k", how do we know what the  
other numbers "a_k + 1, a_k+2, ......" might be?

Bobby

On Sun, 15 Jan 2012 03:51:49 -0600, Rex <aoirex at gmail.com> wrote:

> Given k positive numbers a_1<a_2<a_3<...<a_k, and all integers greater
> than a_k, we want to check whether this set {a_1, a_2, a_3,...a_k, a_k
> + 1, a_k+2, ......} is closed under addition.
>
> Is there any easy way to do this? any functions that we could use in
> Mathematica?
>
> Your help will be greatly appreciated.
>
>


-- 
DrMajorBob at yahoo.com



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