 This conceptual framework first of all postulates an ensemble of pairs of systems, the individual systems in each pair being labeled as 1 and 2. Each pair of systems is characterized by a “complete state” \(\lambda\) which contains the entirety of the properties of the pair at the moment of generation. No assumption whatsoever is made about the nature of the state \(\lambda\). The state space \(\Lambda\), which is the totality of all possible complete states \(\lambda\), could be a set of quantum states and nothing more, or a set whose elements are quantum states supplemented by additional variables, or something more exotic, perhaps some state space as yet unthought of.