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arXiv · 0907.2361

One topos, many sites

Olivia Caramello
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Abstract

We give characterizations, for various fragments of geometric logic, of the class of theories classified by a locally connected (resp. connected and locally connected, atomic, compact, presheaf) topos, and exploit the existence of multiple sites of definition for a given topos to establish some properties of quotients of theories of presheaf type.

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Olivia Caramello. 2009-07-14. One topos, many sites. https://arxiv.org/abs/0907.2361

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