Question: Database Functional Dependencie and Normalization Rules Prove or disprove the following inference rules for functional/multi-valued dependencies. 1. X Y and Z Y and WSZEX W

Prove or disprove the following inference rules for functional/multi-valued dependencies. 1. X Y and Z Y and Given the following inference rules: (RO) X XX Y, then X Y (R1) if X (R2) X Y =XZ YZ (R3) XY, Y Z = X Z Database Functional Dependencie and Normalization Rules

Prove or disprove the following inference rules for functional/multi-valued dependencies. 1. X Y and Z Y and WSZEX W 2. XY, ZY+X Z 3. XY, XY Z=X Z 4. XY EXY 5. XY, Z WXZYW

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1 Prove or disprove the following inference rule X Y and Z Y and W Z X W This inference rule is valid It can be proven using the following steps By definition of functional dependency we know that X Y ... View full answer

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