Post #1506857
2026-03-24 12:39 UTC
@oantolin @cbaberle I don't think you can map the primes however you want, there is still some topology going on. But you can, for example, permute them however you want.
Replies (1)
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@oantolin@mathstodon.xyz 2026-03-24 12:46
@jdw @cbaberle oh, you're right, thanks for the correction! I think you can pick an arbitrary map with finite fibres for the primes, but permuting them is enough to show there are uncountably many maps, and is simpler, so that's what I went with.