Measurable function
= Measurable function
{wiki}
A function $f:(X,\mathcal A)\to(Y,\mathcal B)$ between measurable spaces is measurable when $f^{-1}(B)\in\mathcal A$ for every $B\in\mathcal B$.
= Measurable function
{wiki}
A function $f:(X,\mathcal A)\to(Y,\mathcal B)$ between measurable spaces is measurable when $f^{-1}(B)\in\mathcal A$ for every $B\in\mathcal B$.