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Equation 1 · Part 3 · God Plays Dice, and Evolution Loads Them

Symbol a

S=∣E(a,b)−E(a,b′)+E(a′,b)+E(a′,b′)∣≤2S = \left| E(a,b) - E(a,b') + E(a',b) + E(a',b') \right| \le 2
aa

What this part means

a is one of the signed contributions combined to compute the quantity on the left.

Its job in the formula

a is one of the signed contributions combined to compute the quantity on the left.

The passage around this formula

EPR’s paper stayed a philosophical argument until 1964, when John Bell showed it could be turned into an experiment [ 3 ] . Bell proved that any theory obeying both locality — no faster-than-light influence — and realism, in the sense of outcomes fixed by pre-existing local properties, must satisfy a statistical…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the surrounding passage

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