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Project-declaredLean 4.32.0

Sum moebius pmul eq prod one sub

ArithmeticFunction.sum_moebius_pmul_eq_prod_one_sub

Plain-language statement

If g is a multiplicative arithmetic function, then for any n0n \neq 0, dnμ(d)g(d)=pn(1g(p))\sum_{d | n} \mu(d) \cdot g(d) = \prod_{p | n} (1 - g(p)).

analytic number theoryprime numbersasymptotics

Source project: Prime Number Theorem and More

Person-level attribution pending.

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