• Interaction With Products I. The map
    is an isomorphism of sets, natural in $X,Y\in \text{Obj}\webleft (\mathsf{Sets}\webright )$ with respect to each of the functor structures $\mathcal{P}_{*}$, $\mathcal{P}^{-1}$, and $\mathcal{P}_{!}$ on $\mathcal{P}$ of Proposition 2.4.2.1.1. Moreover, this makes $\mathcal{P}_{*}$, $\mathcal{P}^{-1}$, and $\mathcal{P}_{!}$ into symmetric monoidal functors.

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