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From: joes <noreply@example.org>
Newsgroups: sci.math
Subject: Re: A question for set-theorists
Date: Wed, 20 Nov 2024 18:06:40 -0000 (UTC)
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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.