arXiv · 1406.5479
We describe a geometric theory classified by Connes-Consani's epicylic topos and two related theories respectively classified by the cyclic topos and by the topos $[{\mathbb N}^{\ast}, \mathbf{Set}]$.
Olivia Caramello, Nicholas Wentzlaff. 2014-06-20. Cyclic theories. https://arxiv.org/abs/1406.5479
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