Definition 4.38.2. Let \mathcal{C} be a category. A category fibred in sets, or a category fibred in discrete categories is a category fibred in groupoids all of whose fibre categories are discrete.
Definition 4.38.2. Let \mathcal{C} be a category. A category fibred in sets, or a category fibred in discrete categories is a category fibred in groupoids all of whose fibre categories are discrete.
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