Commit 2021-10-21 11:25 fe5ddaf4

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feat(ring_theory/polynomial/cyclotomic): add cyclotomic_prime_pow_eq_geom_sum and supporting lemmas (#9845) Clean up a little bit in src/number_theory/divisors.lean using to_additive too.

Estimated changes

Modified src/number_theory/divisors.lean

added theorem nat.mem_proper_divisors_prime_pow

added theorem nat.prime.prod_divisors

added theorem nat.prime.prod_proper_divisors

deleted theorem nat.prime.sum_divisors

deleted theorem nat.prime.sum_proper_divisors

deleted theorem nat.prod_divisors_prime

added theorem nat.prod_proper_divisors_prime_pow

added theorem nat.proper_divisors_prime_pow

deleted theorem nat.sum_divisors_prime_pow

Modified src/ring_theory/polynomial/cyclotomic.lean

added theorem polynomial.cyclotomic_prime_pow_eq_geom_sum