#epistemology #mathematic # [[Epistemic status]] #shower-thought # Nonpsychological probability #to-digest A solution to [[Psychologism]] fo [[Probability]]. >A newer variant of the subjective interpretation, *1 however, deserves more serious consideration here. This interprets probability statements not psychologically but logically, as assertions about what may be called the 'logical proximity" of statements. Statements, as we all know, can stand in various logical relations to one another, like derivability, incompatibility, or mutual independence; and the logico-subjective theory, of which Keynes' is the principal exponent, treats the probability relation as a special kind of logical relationship between two statements. The two extreme cases of this probability relation are derivability and contradiction: a statement q 'gives',* it is said, to another statement p the probability 1 if p follows from q. In case p and q contradict each other the probability given by q to p is zero. Between these extremes lie other probability relations which, roughly speaking, may be inter- preted in the following way: The numerical probability of a statement p (given g) is the greater the less its content goes beyond what is already contained in that statement q upon which the probability of p depends (and which 'gives' to p a probability) The kinship between this and the psychologistic theory may be seen from the fact that Keynes defines probability as the 'degree of rational belief. >~ [[Karl Popper]] # External links