Let $T, P$ be two topoi, and $f:T \longrightarrow P$.
Does there exist two site $S_{T}, S_{P}$ and a morphism $g: S_{T} \longrightarrow S_{P}$ such that $f$ is induced by $g$ ?
Let $T, P$ be two topoi, and $f:T \longrightarrow P$.
Does there exist two site $S_{T}, S_{P}$ and a morphism $g: S_{T} \longrightarrow S_{P}$ such that $f$ is induced by $g$ ?