The Stacks project

  • Products of categories cofibered in groupoids: If $\mathcal{F}$ and $\mathcal{G}$ are categories cofibered in groupoids over $\mathcal{C}_\Lambda $ then their product is defined to be the $2$-fiber product $\mathcal{F} \times _{\mathcal{C}_\Lambda } \mathcal{G}$ as described in Categories, Lemma 4.32.3.


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