As the following example, (bag {True, False, True, False} )→union(bag {True} ) = bag { True, False} Evaluate (a) and (b) (a)  bag { ‘jason’, ‘jason’, ‘jason’} )→asset What is the evaluation result of the above?  (b)  (set{1,2,3,4,5})→exists(x|x>3) What is the evaluation result of the above

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