Mat Forstater wrote, >I don't see either one as short-hand for the other. Exchange-value is the >expression of value. Correct. However, Marx _used_ exchange-value as an abbreviation, _said_ he had used it as an abbreviation but then pointed out that, strictly speaking, it was wrong to do so. I suspect we're entering into the paradoxical aspect of Marx's rhetoric in which he allows an error to stand, provisionally, until such time as he had developed the argument far enough to enable him to "remove the scaffolding". I think I understand the reasons for doing this and would concur with Marx's rhetorical judgement, as puzzling as it may seem from OUR perspective. Tom Walker Sandwichman and Deconsultant 215-2273