1. Functional Dependencies

Prove or disprove that if A B then B C. Explain your answer.

2. Functional Dependencies

Consider the following sets of functional dependencies F1 = {AC B, A C, D A} and F2 = {A

B, A C, D A, D A}. Are they equivalent? Explain your answer.

3. Find a minimal basis (aka minimal cover) for a set of functional dependencies.

Find the minimal cover of the set F= {A C, AB C, C DI, CD I, EC AB, EI C}