Let A and B be sets. The notation A \ B refers to the set whose elements belong to A but not to B. (a) (10 points) Prove
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Let A and B be sets. The notation A \ B refers to the set whose elements belong to A but not to B. (a) (10 points) Prove
Let A and B be sets. The notation A \ B refers to the set whose elements belong to A but not to B. (a) (10 points) Prove: If A \ BB\ A, then AB. (b) (5 points) Is the converse true? Write a proof or provide a counterexample.
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