## Use Armstrongâ€™s axioms to prove the derivation functional dependencies.

Use Armstrongâ€™s axioms to prove the derivation functional dependencies

In each step of the proof, Armstrongâ€™s axiom must be specified.

- Consider a relation R=(A,B,C,D,E, F, G) that satisfies the following four FDs: Aâ†’B, Aâ†’C, CDâ†’EF, F â†’G

Using the Armstrong Axioms, find the minimal key for relation R. - Consider a relation R=(L, M, N, O, P, Q) that satisfies the following four FDs: Lâ†’ M, Nâ†’ LO, LQâ†’ P.Does NQâ†’PM hold?

If so, show a formal proof.

in progress

Design and Analysis of Algorithms
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