Objective Probability
  A distinction is sometimes made between "statistical" and "subjective"
probabilities. This is based on a distinction between "unique" events and
"repeatable" events. We argue that this distinction is untenable, since all
events are "unique" and all events belong to "kinds", and offer a conception of
probability for A1 in which (1) all probabilities are based on -- possibly
vague -- statistical knowledge, and (2) every statement in the language has a
probability. This conception of probability can be applied to very rich
languages.
