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Consider a relation R(A, B, C, D, E, F) with the following functional dependenci...

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Consider a relation R(A, B, C, D, E, F) with the following functional dependencies:  

1. A → BC  

2. C → D  

3. B → E  

4. E → F  

Using the attribute closure method, is A → F derivable from the given FDs?  

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