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by ppragman
Mon May 08, 2017 7:39 am UTC
Forum: Mathematics
Topic: Alien Mathematics: A Math System Beyond our Comprehension?
Replies: 24
Views: 8567

Re: Alien Mathematics: A Math System Beyond our Comprehension?

This is interesting - I've often wondered if the "real" numbers really were "real" in the sense that we make them real. If the universe is "discrete" and there is nothing other than the naturals outside of our minds, then I could see a hyper-advanced civilization that d...
by ppragman
Mon May 08, 2017 7:21 am UTC
Forum: Mathematics
Topic: Percentage of numbers that are prime
Replies: 37
Views: 11905

Re: Percentage of numbers that are prime

I could be wrong here (hapless undergrad checking in), but the naturals and the primes can be put into a "one-to-one" correspondence with one another(infinitude of primes, and primes being a subset of \mathBB{N}), so they have the same cardinality - namely Aleph Nought, so to say "wha...

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