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Show that the following four conditions are equivalent:

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asked Jul 18, 2017 in Mathematics by jayprakash (2,890 points) ● 1 ● 3 ● 20

Show that the following four conditions are equivalent: 

(i) A ⊂ B 

(ii) A – B = Φ 

(iii) A ∪ B = B

 (iv) A ∩ B = A 

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answered Jul 18, 2017 by jayprakash (2,890 points) ● 1 ● 3 ● 20
 
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solution: we know

    

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