Constructive sheaf models of type theory
Constructive sheaf models of type theory
复制标题
类型论的构造层模型
DOI:
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发表时间:
2019
影响因子:
0.5
通讯作者:
Christian Sattler
中科院分区:
文献类型:
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作者:
T. Coquand;Fabian Ruch;Christian Sattler
Abstract We provide a constructive version of the notion of sheaf models of univalent type theory. We start by relativizing existing constructive models of univalent type theory to presheaves over a base category. Any Grothendieck topology of the base category then gives rise to a family of left-exact modalities, and we recover a model of type theory by localizing the presheaf model with respect to this family of left-exact modalities. We provide then some examples.