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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

[en] 2-CATEGORY AND PROOF THEORY / [pt] 2-CATEGORIA E TEORIA DA PROVA

CECILIA REIS ENGLANDER LUSTOSA 12 February 2010 (has links)
[pt] Dedução Natural para a lógica intuicionista tem sido relacionada à Teoria das Categorias através do que agora é conhecido por Lógica Categórica. Essa relação é fortemente baseada no isomorfismo de Curry-Howard entre Dedução Natural e (lambda)-Cálculo Tipado. Esta dissertação descreve alguns aspectos dessa relação com o objetivo de propor uma visão 2-categórica da Lógica Categórica. Mostramos que mesmo numa visão 2-cateórica algumas desvantagens conhecidas na Teoria das Categorias continuam valendo. Concluímos essa dissertação discutindo as vantagens de uma visão 2-categórica a partir de premissas mais fracas. / [en] Natural Deduction for intuitionistic logic has been related to Category Theory by what now is known as Categorical Logic. This relationship is strongly based on the Curry-Howard Isomorphism between Natural Deduction and typed (lambda)-Calculus. This dissertation describes some aspects of these relationship with the aim of proposing a 2-categorical view of categorical logic. We show that even under this 2-categorical view some of the drawbacks already known in ordinary Category Theory remain holding. We conclude this dissertation discussing the advantages of 2-categorical view under some weaker assumptions.

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