1 Principia Mathematica, Cambridge University Press, 1962 ed., p. 174. Henceforth referred to as MP.
2 John Woods, “A propos de «(∃x) (y) [(φy ≡ y = x).ψx]»,” Dialogue, Vol. 7, no. 1, 1968, pp. 78-90.
3 Logic and Knowledge, ed. R. C. Marsh, London, Macmillan, 1956. Hence-forth referred to as LK.
6 Introduction to Mathematical Philosophy, London, Allen and Unwin, 1919, p. 164; LK, p. 232.
7 Punctuation added to remove the incoherence of Russell's own version, cf. Woods, op. cit., pp. 85-86.
8 Pears D. F., Bertrand Russell and the British Tradition in Philosophy, New York, Random House, 1967, p. 64.
9 ‘Value’ is frequently ambiguous in Russell; it may mean a phrase, such as ‘Charles 1’, or the actual King of England who was executed. I perpetuate the ambiguity deliberately, because it is fundamental to this aspect of Russell's theory.
10 The distinction between the primary and secondary occurrence of definite descriptions can be ignored here, although certain aspects of it strengthen my argument; cf. my paper in Essays on Bertrand Russell, ed. E. Klemke, University of Illinois, 1970.
11 My Philosophical Development, London, Allen and Unwin Ltd., 1959, p. 84.
12 Woods, op.cit., p. 89.
13 cf. Quine W. V., “Russell's Ontological Development,” in Bertrand Russell, Philosopher of the Century, ed. Schoeman R., London, Allen and Unwin, 1967, for other aspects of this problem.