bayes Definition and 1 Threads

As far as I know, Bayes' theorem is ##P(A|B) = \frac{P(A) \times P(B|A)}{P(A) \times P(B|A) + P(\neg A) \times P(B|\neg A)}##. I recall someone saying Bayes' theorem revolutionized probability. Bayes himself and Laplace are supposedly key figures in this revolution. I know how to apply the...