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Functional dependencies A->B and C->B, but not AC->B?
If I have a relation:
A B C 1 2 3 4 5 6 7 2 8
Where $A\mapsto B$ and $C \mapsto B$. Doesn't that mean that $AC \mapsto B$? How can you even have this relation? ...
Apr 3 '12 at 22:14
newest relation-algebra discrete-mathematics questions feed
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