The basic foundation of probability theory follows from the following intuitive definition of conditional probability.

In this definition events ** A ** and ** B ** are simultaneous an have
no (explicit) temporal order we can write

This leads us to a common form of Bayes Theory, the equation:

which allows us to compute the probability of one event in terms of observations of another and knowledge of joint distributions.

Fri Mar 28 14:12:50 GMT 1997