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Fraïssé's construction from a topos-theoretic perspective

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If you have a question about this talk, please contact Richard Garner.

We present a topos-theoretic interpretation of (a categorical generalization of) Fraïssé’s construction in Model Theory, with applications to countably categorical theories. The proof of our main theorem represents an instance of exploiting the interplay of syntactic, semantic and geometric ideas in the foundations of Topos Theory.

This talk is part of the Category Theory Seminar series.

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