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Commit 2022-07-20 19:03 80ae52a9

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refactor(data/nat/factorization): Change definition of factorization to be computable (#12301) This PR changes the definition of data.nat.factorization to not depend on multiset.to_finsupp and instead to depend on padic_val_nat. This sidesteps the computability issues with finsupp discussed in this thread. To deal with the changed imports this PR also moves some material from number_theory/padics/padic_val and ring_theory/multiplicity into data/nat/factorization/basic.

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