Abstract
The principle of common cause asserts that positive correlations between causally unrelated events ought to be explained through the action of some shared causal factors. Reichenbachian common cause systems are probabilistic structures aimed at accounting for cases where correlations of the aforesaid sort cannot be explained through the action of a single common cause. The existence of Reichenbachian common cause systems of arbitrary finite size for each pair of non-causally correlated events was allegedly demonstrated by Hofer-Szabó and Rédei in 2006. This paper shows that their proof is logically deficient, and we propose an improved proof.
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Notes
Notice that the logical direction of the proof is opposite to the direction in which it is presented.
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Acknowledgements
We are appreciative of useful discussion with Michał Marczyk and Leszek Wroński, and comments from Gábor Hofer-Szabó and an anonymous referee. Both authors acknowledge the support of the University of Queensland. PWE would like to acknowledge funding support from the Templeton World Charity Foundation (TWCF 0064/AB38) and the Australian Government through the Australian Research Council (DE170100808).
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Mazzola, C., Evans, P.W. Do Reichenbachian Common Cause Systems of Arbitrary Finite Size Exist?. Found Phys 47, 1543–1558 (2017). https://doi.org/10.1007/s10701-017-0124-1
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DOI: https://doi.org/10.1007/s10701-017-0124-1