The difference between the canonical shell and the minimum coverage

Question

Sorry if this is a funny question;

I searched high and low for an answer to no avail.

I know how to calculate the minimum coverage;

those. ensure that each functional dependency has only one attribute for RHS, remove extratraneous / redudant lhs attributes by computing the closure of each, checking all FDs, seeing if anyone can remove (again by calculating the closure)

Is a “canonical” cover just one word for the same thing?

Answer 1

"" . . "A → BC", "A → B, A → C". .

Answer 2

, , . .

Answer 3

, FD F+. .

• divyalakshmi