In: Advanced Math
consider the relation where each elements of the domain are the vowels of the alphabet. If the elements of the range are all the elements of the subset of {P,Q,R} and each domain element is associated with an image, can this relation be a function? Can it be one to one, justify your answer.
Given relation is function since it maps every element of domain set to exactly one element of codomain.
This function cannot be one one since domain set has more elements than codomain set.
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