 So far Friederich’s therapeutic approach parallels Healey’s pragmatist approach (though there are significant differences of detail, especially as regards their treatments of probability and causation). But Friederich rejects Healey’s inferentialist account of the content of claims about the values of physical magnitudes, taking restrictions on legitimate applications of the Born Rule to follow directly from the constitutive rules governing its use rather than from the need to apply it only to magnitude claims with well-defined content. And Friederich seriously explores the possibility that a set of magnitude claims collectively assigning a precise value to all dynamical variables may be not only meaningful but true together. His idea is that the constitutive rules governing the Born Rule may forbid any attempt to apply the rule in a way that would imply the existence of a non-contextual probability distribution over their possible values, thus avoiding conflict with no-go theorems like that of Kochen and Specker.