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Some remarks on the infinitude of primes
I have at least four planned posts left in the series on symmetric functions, but unfortunately I’ll be very busy for the next two weeks. In the meantime, here are some thoughts on the primes. Euclid’s...
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Some countability proofs
Theorem: The set of finite sequences of elements of a countable set is countable. I like this result because it specializes to several other basic countability results: for example, it implies that...
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