In the theory of interval-probability the F-indicator-field of the random event A describes the information that A occurs and that nothing more is known. It will be shown how combined algebraic operations can be employed to trace back the set of F-fields to the set of F-indicator-fields. This is also a demonstration of mathematical analysis applied to the objects of the theory of interval-probability.
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Dep. of Statistics
D 80539 Muenchen