 The result of an experiment with setting \(a\) on system 1 is labeled by a real parameter \(s\), which can take on values from a discrete set \(S_a\) of real numbers in the interval [\(-1, 1\)]. Likewise, the result of an experiment on 2 is labeled by a parameter \(t\), which can take on any of a discrete set of real numbers \(T_b\) in \([-1, 1]\). As suggested by the subscripts, the sets of potential outcomes may depend on the experimental settings. The restriction of the values of the outcome labels to lie in the interval \([-1, 1]\) is of no physical significance, and is a choice made only for convenience. Indeed, the use of numbers to label outcomes is merely a matter of convenience, and, can, if desired, be dispensed with, in favour of relations expressed solely in terms of the relevant probabilities, as in the CH inequality, inequality (25), below. Bell’s own version of his theorem assumed experiments with two possible outcomes, labelled \(\pm 1\). Other variants of the theorem involve larger sets of potential outcomes.