Article,

Théories homotopiques dans les topos

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Journal of Pure and Applied Algebra, 174 (1): 43 - 82 (2002)
DOI: http://dx.doi.org/10.1016/S0022-4049(01)00176-1

Abstract

The purpose of these notes is to give an ad hoc construction of a closed model category structure on a topos inverting an arbitrary small set of arrows. Moreover, a necessary and sufficient condition for those structures to be proper is given. As an example, the Joyal closed model category structure on the category of simplicial objects of a topos is constructed without the use of (boolean) points.

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