William J. Pervin

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I?ichardson. T\ 7508 0 4 I. Introduction. Alullivalued dependencies (\1VD's) are conlpl(A relationships used i n describing (he lth normal focal of relationa l databases. The study of inference rules is mad e even more complicated by the use of definition s which may require that the sets involved be dis-joint. It would appear that some texts use tha t(More)
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