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Consider the following set F of functional dependencies on the relation schema r(A,B,C,D,E,F): ABCD BCDE BD DA a. Compute B+. b. Compute D+. c. Prove

Consider the following set F of functional dependencies on the relation schema r(A,B,C,D,E,F): ABCD BCDE BD DA a. Compute B+. b. Compute D+. c. Prove (using Armstrongs axioms) that AF is a superkey. d. Compute a canonical cover for the above set of functional dependencies F; give each step of your derivation with an explanation.

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