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For three sets A, B and C, show that (i) A∩B=A∩C need not imply B = C. (ii) A⊂B⇒C−B⊂C−A |
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Answer» For three sets A, B and C, show that (i) A∩B=A∩C need not imply B = C. (ii) A⊂B⇒C−B⊂C−A |
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