On Contextuality as a Feature of Logic and Probability Theory

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arXiv · 2603.11857

On Contextuality as a Feature of Logic and Probability Theory

Ask Ellingsen

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Abstract

In quantum mechanics, not everything that can be observed can be observed simultaneously. Observational data exhibits \emph{contextuality} -- a generalisation of nonlocality -- if the result of an observation is necessarily dependent on which combination of observables was measured. This article gives a mathematical introduction to contextuality, emphasising its nature as a general feature of probability theory and logic, rather than of any particular quantum theory.

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Ask Ellingsen. 2026-03-12. On Contextuality as a Feature of Logic and Probability Theory. https://arxiv.org/abs/2603.11857

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