1. C. G. Hempel, Aspects of Scientific Explanation and Other Essays, Free Press, New York, 1965, p. 15.
2. Nelson Goodman, Fact, Fiction, and Forecast, University of London Press, London, 1955, p. 74.
3. Ibid., pp. 82 ff.
4. Ibid., pp. 95 ff.
5. I mean this only as a sufficient condition of lawlikeness. See Donald Davidson, ‘Emeroses by Other Names’, The Journal of Philosophy 63 (1966), 778–780.