Show the following rule for MVDs The attributes are arbitrar

Show the following rule for MVD\'s. The attributes are arbitrary sets X, Y, Z and the other unnamed attributes of the relation in which these dependencies hold. The Union Rule. If X, Y, and Z are sets of attributes, X Y, and X Z, then X (YUZ) Show the following rule for MVD\'s. The attributes are arbitrary sets X, Y, Z and the other unnamed attributes of the relation in which these dependencies hold. The Intersection Rule. If X, Y: and Z are sets of attributes, X Y, and X Z, then X (Y Z). Show the following rule for MVD\'s. The attributes are arbitrary sets X, Y, Z and the other unnamed attributes of the relation in which these dependencies hold. The Difference Rule. If X, Y, and Z are sets of attributes X, Y, and X Z, then X (Y-Z).

Solution

Q9: