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How does contextuality imply that amplitudes sum?

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Contextuality is regarded as the most 'quantum' of quantum phenomena. How can it be used to show that amplitudes should 'sum'?

asked Aug 6, 2015 in Theoretical Physics by anonymous [ no revision ]
retagged Aug 7, 2015 by Dilaton

Can you elaborate a bit on this question and give more context?

commented Aug 7, 2015 by Dilaton (6,240 points) [ no revision ]

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