arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1202.1012math.LOmath.CT
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商完备化是构造数学的基础

Quotient completion for the foundation of constructive mathematics

Maria Emilia Maietti, Giuseppe Rosolini

摘要:

我们应用范畴逻辑中开发的一些工具,给出了一个抽象的描述,用于形式化建设性数学的基础上内涵类型理论的建设。我们采用的关键概念是一个Lawvere hyperdoctrine,我们描述了一个概念的商完成。这个概念包括了一个范畴的精确完备化,它以弱有限极限为例,也包括了类型论中与之不同的例子。

英文摘要:

We apply some tools developed in categorical logic to give an abstract description of constructions used to formalize constructive mathematics in foundations based on intensional type theory. The key concept we employ is that of a Lawvere hyperdoctrine for which we describe a notion of quotient completion. That notion includes the exact completion on a category with weak finite limits as an instance as well as examples from type theory that fall apart from this.

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