Finally, wc noted some standard terminology used in thc context 0f scientific inference (whcrc H denotes a hypothesis and E a body 0f cvidcncc): Pr(E I H) =d€f thc ‘likclih00d’ 0f H, Pr(E) and Pr(H) =d€fthc ‘prior probabilitics’ 0f E and H, respectively, Pr(H IE) =d€fthc ‘postcrior probability’ 0f H. Now [P1] t0 [P4] above can bc used t0 derive a very useful relationship bctwccn thc posterior probability of a hypothesis, its prior probability and its likelihood.