Commit 2023-03-14 11:21 ceb887dd

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feat(algebra/char_p/basic): refactor proof of add_pow_char_of_commute to extract a statement true in all rings (#11364) If x and y commute, the pth power of their sum is the sum of the pth powers plus a multiple of p. This holds in any semiring and easily implies the additivity of frobenius in char p, but is occasionally useful in characteristic 0. Also make the fact that p is 0 in a char_p ring a simp lemma. From flt-regular

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