Check out example codes for "Write a function that accepts as input two sets represented as lists and produces at output a list representing the intersection of the two sets. Example: >(union ’(a b c d e f) ’(a c f e x y)) ; Value: (a b c d e f x y)". It will help you in understanding the concepts better.
Code Example 1
(define (checkresult a b) (list (subtract a b) (subtract b a) (union a b) (intersect a b)))
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