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1. |
Let X be a non-empty set and let A, B, C be subsets of X, consider the following statements:1) A ⊂ C ⇒ (A ∩ B) ⊂ (C ∩ B), (A ∪ B) ⊂ (C ∪ B)2) (A ∩ B) ⊂ (C ∪ B) for all sets B ⇒ A ⊂ C3) (A ∪ B) ⊂ (C ∪ B) for all sets B ⇒ A ⊂ CWhich of the above statements is/are correct? |
A. | 1 and 2 only |
B. | 2 and 3 only |
C. | 1 and 3 only |
D. | 1, 2 and 3 |
Answer» D. 1, 2 and 3 | |