Definition 90.6.1. Let $F : \mathcal{C}_\Lambda \to \textit{Sets}$ be a functor. We say $F$ is *prorepresentable* if there exists an isomorphism $F \cong \underline{R}|_{\mathcal{C}_\Lambda }$ of functors for some $R \in \mathop{\mathrm{Ob}}\nolimits (\widehat{\mathcal{C}}_\Lambda )$.

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