Question: Question 2. Let A, B be two sets. Prove that 24 U 2B C 2AUB , and show by a counterexample that equality does not

Question 2. Let A, B be two sets. Prove that 24 U 2B C 2AUB , and show by a counterexample that equality does not hold. (3pt) ( Extra Credit). Prove that every infinite set is equinumerous to a proper subset of itself. (3pt)

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