A.1 IntroductionA.2 Distinctions and the Clairvoyance TestA.3 Possibility Tree Representation of a DistinctionA.4 Probability as an Expression of Degree of BeliefA.5 Inferential NotationA.6 Multiple DistinctionsA.7 Joint, Conditional, and Marginal ProbabilitiesA.8 Calculating Joint ProbabilitiesA.9 Dependent and Independent ProbabilitiesA.10 Reversing Conditional Probabilities – Bayes' RuleA.11 Probability DistributionsA.12 Combining Uncertain QuantitiesReferencesNote