"In a relation r, for every instance of a, that value of a uniquely determines the value of b then a primary dependency exists in the relation.
Relation:
In math relation means the relationship between sets of values of ordered pairs.
Given,
Here we need to find if for every valid instance of a, that value of a uniquely determines the value of b in the relation.
As per the definition of relation, for every relation has two set of data ad each of the element in one set is uniquely refers the other one's element.
Here we have to identify the type of relation between a an b.
Here we have given that the relation a uniquely determines the value in b.
So, this type primarily refers the dependency of the relation.
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