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Prove the following: • A'∩(A∪B)=A'∩B • A'∪(A∩B) = A'∪B • if A ⊆ B then B...
Prove the following: • A'∩(A∪B)=A'∩B • A'∪(A∩B) = A'∪B • if A ⊆ B then B ⊆ A • A−(B−A)=A
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Please solve: A∪B ⊂ (A-B)∪B
Please solve: A∪B ⊂ (A-B)∪B