Duality for Clans: a Refinement of Gabriel-Ulmer Duality
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Clans are representations of generalized algebraic theories that contain more information than the finite-limit categories associated to the l.f.p. categories of models via Gabriel-Ulmer duality. Refining Gabriel-Ulmer duality to account for this additional information, this article presents a duality theory between clans and l.f.p. categories equipped with a weak factorization system subject to axioms.
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