given the following set of functional, Database Management System

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given the following set of functional

Given the following set of functional dependencies {cf→bg, g→d, cdg→f, b→de, d→c} defined on R(b,c,d,e,f,g)

a. Is cf→e implied by the FDs?

b. Is dg a superkey?

c. Is dg a candidate key?

d. Find a non-redundant cover.

e. Find a canonical cover.

f. What are the candidate keys?

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