1. F.P. Ramsey, The Foundations of Mathematics, London: Routledge and Kegan Paul, 1931, p. 166ff.
2. B. de Finetti, Theory of Probability: A Critical and Introductory Treatment, trans. A. Machi and A. Smith, London: John Wiley, 1974, p. 3.
3. C. Howson and P. Urbach, Scientific Reasoning: The Bayesian Approach, La Salle: Hlinois, 1989, p.56ff.
4. E.g. H. Kyburg, ‘Rational Belief’, The Behavioral and Brain Sciences 6, 1983, p. 236.
5. E.g. H. Kyburg, ‘Rational Belief’, The Behavioral and Brain Sciences 6, 1983. p. 173.