1. T.Storer, “A Note on Empiricism,”Philosophical Studies, 4(No. 5):78 (1953), p. 78.
2. Since 2 serves only to enable us to introduce a proposition like D(R,Y), it will not be discussed.
3. For a discussion of the meaning of ‘analytic’ see G. Bergmann, “Two Cornerstones of Empiricism,”Synthese, 8:435–52 (1952).
4. One might point out that if D(R,Y) and ∼D(R,Y) were both true, then the meaning of ‘not’ would have changed. This, however, is just another way of saying that a two-valued language would no longer be adequate. To contend at this point that the meaning of ‘not’ must not change is to legislate a logic applicable to the world instead of discovering one that is adequate.
5. Professor Bergmann has made a similar point in connection with the proposition “Everything that is green is extended.” See his “Discussion of Non-Perceptual Intuition,”Philosophy and Phenomenological Research, 10 (No. 2) :263-64 (1949).