Apparently $\leftarrow_\$$This answer is broken according to a report? Seemsfree for anyone to not be the case..edit.
$$\leftarrow_\$$$
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$\leftarrow_\$$
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$$\leftarrow_\$$$
$$\left|\Pr_{k\leftarrow_\$\ \{0,1\}^n}[\mathcal{A}(1^n, F(k,-))=1] - \Pr_{f\leftarrow_\$\ \{0,1\}^n\to\{0,1\}^n}[\mathcal{A}(1^n, f(-))=1]\right|\leq \mathrm{negl}(n).$$