 The distinctive condition giving rise to the Bell Inequality assumption is the factorizability condition (F). This condition is motivated by considerations concerning locality and causality. Considerations of this sort have been the focus of the discussion of the implications of Bell’s theorem. However, in order to a derive a conflict between the predictions for theories that satisfy this assumption, other assumptions—some of which are the sort usually accepted without question in scientific experimentation—are needed. The analysis of Bell’s theorem has provoked careful scrutiny of the reasoning required to reach the conclusion that F is to be rejected. As a result, some assumptions that in another context would have been left implicit have been made explicit, and each has been challenged by some authors. In this section we outline a set of assumptions sufficient to ensure satisfaction of Bell inequalities, which, therefore, constitute a set of assumptions that cannot all be satisfied by any theory that yields, in agreement with experiment, violations of Bell inequalities. There are other paths to Bell inequalities; see, in particular, Wiseman and Cavalcanti (2017), who offer an analysis similar to that found here, as well as other analyses.