Both in science and in practical affairs we reason by combining facts only inconclusively
supported by evidence. Building on an abstract understanding of this process of
combination, this book constructs a new theory of epistemic probability. The theory draws on
the work of AP Dempster but diverges from Depster's viewpoint by identifying his" lower
probabilities" as epistemic probabilities and taking his rule for combining" upper and lower
probabilities" as fundamental. The book opens with a critique of the well-known Bayesian …