Consider the relational schema R(A, B, C, D, E, F) with the following functional dependencies:
A → B
A → C
CD → E
CD → F
B → E
Which of the following statements is false?
1
A → E holds true because of transitivity rule of Armstrong’s axioms.
2
CD → EF holds true because of union rule of Armstrong’s axioms.
3
CD → F holds true because of decomposition rule of Armstrong’s axioms.
4
None of the above