The World According to De Finetti  Recording Details  Scientific
Areas:  PIRSA Number:    Bruno de Finetti is one of the founding
fathers of the subjectivist school of probability, where
probabilities are interpreted as rational degrees of belief. His
work on the relation between the theorems of the probability
calculus and rationality is among the corner stones of modern
subjective probability theory. De Finetti maintained that
rationality requires that an agent’s degrees of belief be
coherent. I argue that de Finetti held that the coherence
conditions of degrees of belief in events depend on their
verifiability. On this view, the familiar constraints of
coherence only apply to sets of degrees of belief that could in
principle be jointly verified. Accordingly, the constraints that
coherence imposes on degrees of belief are generally weaker than
the familiar ones. I then consider the implications of this
interpretation of de Finetti for probabilities in quantum
mechanics, focusing on the EPR/Bohm experiment a