Re: The set of necessary FISONs

On 28.01.2025 16:26, joes wrote:

Am Tue, 28 Jan 2025 16:07:51 +0100 schrieb WM:

On 28.01.2025 11:54, joes wrote:

Am Tue, 28 Jan 2025 10:53:04 +0100 schrieb WM:

>

An infinite set of FISONs that has the union ℕ needs a first element.

Where’s the problem? Every set of FISONs has a first element.

Not every set of FISONs has the union ℕ.

Naturally. No finite, but every infinite does.

Name the first element of a set of your choice that cannot be discarded.

 

Name the first FISON that
cannot be discarded to yield the union union ℕ.
If all can be discarded, then there is no set with union ℕ.

That is a complete non sequitur.

No, that is logic. Only what cannot be discarded must remain.
Regards, WM