Given three sets A, B, and C, set X = (A-B) U (B-C) U (C-A) and Y = (A∩B∩C) complement C. Prove that X is subset of Y. Is Y necessarily a subset of X? If yes, prove it. If no, why???
Can someone help me out here... Thanks
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yea I got this... but I don't know how to approach to the prove..
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