Re: A question for set-theorists

Liste des GroupesRevenir à s math 
Sujet : Re: A question for set-theorists
De : noreply (at) *nospam* example.org (joes)
Groupes : sci.math
Date : 20. Nov 2024, 19:06:40
Autres entêtes
Organisation : i2pn2 (i2pn.org)
Message-ID : <7b30e83a53bdc059d74d85d986191e87f23b088e@i2pn2.org>
References : 1
User-Agent : Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2)
Am Wed, 20 Nov 2024 18:02:40 +0100 schrieb WM:
1) Let every unit interval after a natural number on the real axis be
coloured white with exception of the powers of 2 which are coloured
black. Is it possible to shift the black intervals so that the whole
real axis becomes black?
Are the intervals closed or not?

2) Let every unit interval after a natural number on the real axis be
coloured as above with exception of the intervals after the odd prime
numbers which are coloured red. Is it possible to shift the red
intervals so that the whole real axis becomes red?
with the exception of = but instead
or do you mean in addition to?

What colour has the real axis after you have solved both tasks?
If you have "solved" them, I suppose it is black if you do the
second one first.

--
Am Sat, 20 Jul 2024 12:35:31 +0000 schrieb WM in sci.math:
It is not guaranteed that n+1 exists for every n.

Date Sujet#  Auteur
20 Nov 24 * A question for set-theorists16WM
20 Nov 24 +* Re: A question for set-theorists9joes
20 Nov 24 i`* Re: A question for set-theorists8WM
21 Nov 24 i `* Re: A question for set-theorists7joes
21 Nov 24 i  `* Re: A question for set-theorists6WM
21 Nov 24 i   `* Re: A question for set-theorists5joes
21 Nov 24 i    +* Re: A question for set-theorists2WM
22 Nov 24 i    i`- Re: A question for set-theorists1joes
22 Nov 24 i    `* Re: A question for set-theorists2sobriquet
22 Nov 24 i     `- Re: A question for set-theorists1sobriquet
20 Nov 24 `* Re: A question for set-theorists6Chris M. Thomasson
20 Nov 24  +- Re: A question for set-theorists1Chris M. Thomasson
20 Nov 24  +* Re: A question for set-theorists3Chris M. Thomasson
21 Nov 24  i`* Re: A question for set-theorists2Moebius
21 Nov 24  i `- Re: A question for set-theorists1Chris M. Thomasson
21 Nov 24  `- Re: A question for set-theorists1Moebius

Haut de la page

Les messages affichés proviennent d'usenet.

NewsPortal