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Why nullset does not belong to any set A where as null set is a subset of set A

Asked by Ashu Jain 12th October 2013, 8:19 PM
Answered by Expert
Let us consider a set A, say A {a, b, c}.
Set A has 3 elements. 

The subsets of A are 
{null}, {a}, {b}, {c}, {a,b},{a,c},{a,b,c} 
This is true that the null set {} is a subset of A.

But a null set has 0 elements.
This is why the null set is not an element of every set, but a subset of every set.
Answered by Expert 13th October 2013, 4:04 PM
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