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Omni-MATH / Find all functions f defined on the set of positive reals which take positive real values and satisfy: f(xf(y))=yf(x) for all x,y; and f(x)→0 as x→∞. · Discussion

Discussing Find all functions f defined on the set of positive reals which take positive real values and satisfy: f(xf(y))=yf(x) for all x,y; and f(x)→0 as x→∞. · Omni-MATH

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