Completely multiplicative function: Difference between revisions

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===Proof of pseudo-associative property ===
 
<math> (f * g)(n) = \sum_{d|n} f(d) g \left( \frac{n}{d} \right)</math>
 
<math> f \cdot \left(g*h \right)(n) = f(n) \sum_{d|n} g(d) h \left( \frac{n}{d} \right) </math>