Functional dependencies , minimizing SUU->V Can SUU->V or any functional dependency that contains two or more times each attribute be simplified to the same dependency with one attribute? So SUU->V becomes SU->V or STTT->Q becomes ST->Q ?
Yes, each side of a Functional Dependency is a set of attributes, not a multiset, so SUU -&gt; V can be simplified to SU -&gt; V. 

If you think about the definition of Functional Dependency you will understand why this is true.