Example on finding X-closure

Описание к видео Example on finding X-closure

The following functional dependencies are given:
AB → CD, AF → D, DE → F, C → G , F → E, G → A
Which one of the following options is false?

a. {CF}+ = {ACDEFG}
b. {BG}+ = {ABCDG}
c. {AF}+ = {ACDEFG}
d. {AB}+ = {ABCDFG}

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