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    Dagli insiemi alle categorie

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    Si presenta una descrizione della teoria delle categorie con alcuni sviluppi in ambito logico-matematico

    The category of equilogical spaces and the effective topos as homotopical quotients

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    We show that the two models of an extensional version of Martin-Löf type theory, those given by the category of equilogical spaces and by the effective topos, are homotopical quotients of appropriate categories of 2-groupoids
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