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Publication details
Forking independence from the categorical point of view
Authors | |
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Year of publication | 2019 |
Type | Article in Periodical |
Magazine / Source | Advances in Mathrmatics |
MU Faculty or unit | |
Citation | |
Web | Full Text |
Doi | http://dx.doi.org/10.1016/j.aim.2019.02.018 |
Keywords | forking; accessible category; stability; effective unions |
Description | Forking is a central notion of model theory, generalizing linear independence in vector spaces and algebraic independence in fields. We develop the theory of forking in abstract, category-theoretic terms. In particular, we present an axiomatic definition of what we call a stable independence notion on a category and show that this is in fact a purely category-theoretic axiomatization of the properties of model-theoretic forking in a stable first-order theory. |
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