• Interaction With Precomposition III. If $F$ is essentially surjective and full, then the precomposition functor
    \[ F^{*} \colon \mathsf{Fun}\webleft (\mathcal{D},\mathcal{X}\webright ) \to \mathsf{Fun}\webleft (\mathcal{C},\mathcal{X}\webright ) \]

    is full (and also faithful by Item 4 of Proposition 9.6.1.1.2).


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