Re: The set of necessary FISONs

On 28.01.2025 00:32, Richard Damon wrote:

On 1/27/25 9:33 AM, WM wrote:

Also an infinite set needs a first element. But no FISON is necessary or sufficient.

Which means the set of "necessary FISONs" doesn't exist.

The set of useful FISONs does not exist. Otherwise name the first one.

 That doesn't mean what you want it to mean, it just shows your logic is broken.
 we can build an infinite number of infinite sets of FISONs whose union is the Natural Numbers,

That is the diploma of stupidity. Name the first useful FISON!
Regards, WM