Re: Incompleteness of Cantor's enumeration of the rational numbers (extra-ordinary, effectively)

On 04.01.2025 11:59, joes wrote:

Am Sat, 04 Jan 2025 09:52:08 +0100 schrieb WM:

On 04.01.2025 05:06, Richard Damon wrote:

On 1/3/25 12:15 PM, WM wrote:

>

Every union of FISONs which stay below a certain threshold stays below
that threshold.

Every union of a finite number of FISONs is just an admssion that you
can't do the actual union of *ALL* FISONs.

For all FISONs:|ℕ \ {1, 2, 3, ..., n}| = ℵo.

But not for the union.

What should make the union larger than all FISONs?
Every union of FISONs which stay below a certain threshold stays belown that threshold.
Regards, WM