 Several other varieties of logical pluralism have been proposed since Beall and Restall’s early work, and five are outlined in this section. A useful way to classify these different views—including Beall and Restall’s case-based pluralism—is as each taking logical consequence to be relative to a different feature—e.g. precisifications of ‘case’ (for Beall and Restall), sets of logical constants (for Varzi), kinds of truth-bearer (for Russell), goals (for Cook’s less radical approach), and epistemic norms (for  Field’s).[6] 