23. 24. 25. 26. Of union, complement, intersection, Cartesian product: (a) which is the basis for multiplication of whole numbers? (b) which is the basis for addition of whole numbers? Of multiplication of whole numbers, subtraction of integers and addition of rationals, which operation and set has inverses? Of union, intersection, complement, relative complement, Cartesian product: (a) which contains A, B and the intersection of A and B? (b) which shows the elements that are in the universe but not in the specific set? The name of the property that is illustrated by 3(6-5)= (3-6)5 is

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