  While the influence of the nearby setting on the nearby outcome is necessary for parameter dependence, it is not sufficient for it. In all the current quantum theories, the probabilities of joint outcomes in the EPR/B experiment depend on the settings of both measurement apparatuses: The probability that the L-outcome is l-spin ‘up’ and the R-outcome is r-spin ‘up’ and the probability that the L-outcome is l-spin ‘up’ and the R-outcome is r-spin ‘down’ both depend on (l − r), i.e.,  the distance between the angles l and r. In theories in which the sum of these joint probabilities is invariant with respect to the value of (l − r), parameter independence obtains: for all pairs' states λ, L-setting l, and R-settings r and r′, L-outcome xl, and R-outcomes yr and yr′ :