The Stacks project

Lemma 88.29.5. With notation and assumptions as in Situation 88.29.1. If $\mathcal{F} \to \mathcal{G}$ is a smooth morphism of categories cofibred in groupoids over $\mathcal{C}_{\Lambda , k}$, then $\mathcal{F}_{l/k} \to \mathcal{G}_{l/k}$ is a smooth morphism of categories cofibred in groupoids over $\mathcal{C}_{\Lambda , l}$.

Proof. This follows immediately from the definitions and the fact that (88.29.1.1) preserves surjections. $\square$


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