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Saving moral realism: Against Blackburn's projectivism

2015

In the argumentative dialectic between moral realists and non-cognitivist moral antirealists each side in the debate is typically thought to enjoy a different prima facie advantage over its rival. Moral realism gains plausibility from its truth-conditional semantics because it can explain the meaning of moral judgments on the same basis as ordinary propositions. However, many moral philosophers doubt moral realism because the theory is committed to the existence of moral properties, which are, in J. L. Mackie's term, "queer." Moral antirealism denies that these moral properties exist, and this is a principal reason why many moral philosophers endorse the theory. However, if moral terms like "good", "immoral", or "right" do not refer to anything, then the meanings of the moral judgments in which they appear cannot be explained with truthconditional semantics; moral antirealists who wish to preserve moral practice need to develop a semantics that can accommodate it. The general perception of the dialectic is that moral realists have the upper hand in semantics, but a disadvantage in metaphysics, and vice versa for moral antirealists. This essay challenges this assumption. Simon Blackburn's quasi-realism is one of the principal examples of non-cognitivism, a form of moral antirealism that tries to develop an alternative account of moral semantics in Introduction…………………………………………………………….