Subjective conditional probability and coherence principles for handling partial information.
Partitions of a finite set, which are induced by a transformation semigroup acting on it, are studied via the concepts of "orbitoid" (introduced in previous papers) and those of generating and non-absorbing subsets. These partitions give rise to corresponding ones for an arbitrary (finite) semigroup, through the Cayley representation.
In this paper we point out the lack of the classical definitions of stochastical independence (particularly with respect to events of 0 and 1 probability) and then we propose a definition that agrees with all the classical ones when the probabilities of the relevant events are both different from 0 and 1, but that is able to focus the actual stochastical independence also in these extreme cases. Therefore this definition avoids inconsistencies such as the possibility that an event can be at the...
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