1. Hans Reichenbach, The Theory of Probability, University of California Press, Berkeley. 1949.
2. Richard von Mises, Mathematical Theory of Probability and Statistics, Academic Press, New York, 1964.
3. Karl Popper, ‘The Propensity Interpretation of the Calculus of Probability, and the Quantum Theory’, in Observation and Interpretation in the Philosophy of Physics (ed. by S. Korner), Dover Publications, Inc., New York, 1955; and Karl Popper, ‘The Propensity Interpretation of Probability’, British Journal for the Philosophy of Science 10 (1959) 25–42.
4. Ian Hacking, Logic of Statistical Inference, Cambridge University Press, Cambridge, 1965.
5. Reichenbach distinguished between two kinds of ‘probability’ sequences, i.e., normal and non-normal, while Mises distinguished between two kinds of ‘chance’ sequences, i.e., random and non-random (only the former being regarded as ‘probability’ sequences). Mises’ strategy is followed here, with the adoption of Reiehenbach’s concept of normality in lieu of Mises’ concept of randomness. The difficulties with Mises’ definition of randomness are discussed, e.g., by Ernest Nagel, Principles of the Theory of Probability, University of Chicago Press, Chicago, 1939, pp. 32–33.