  Like PCC, the basic idea of FactorUCP is that the objective probabilities of events that do not cause each other are determined by their causal pasts, and given these causal pasts they are probabilistically independent of each other. As is not difficult to see, factorizability is a special case of FactorUCP. That is, to obtain factorizability from FactorUCP, substitute λ for CC(x,y), l for PC(x) and r for PC(y). FactorUCP and the assumption that the probabilities of the measurement-outcomes in the EPR/B experiment are determined by the pair's state and the settings of the measurement apparatuses jointly imply factorizability. Thus, given this later assumption, the failure of factorizability implies superluminal causation between the distant outcomes in the EPR/B experiment according to any account of causation that satisfies FactorUCP (for some examples of such accounts, see Butterfield 1989 and Berkovitz 1995a, 1995b, section 6.7,   1998b).[30]