Labels:text | screenshot | letter | font OCR: p(n) = 2 () (i € P)A {i <= n) The set notation maps a whole set of index values onto one result. For example, to write the sum of all prime numbers less than or equal to (n), you would Primes use the set P of primer numbers and restrict it to the subset of Pln) primes less than or equal to (n).
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