empty set or null set is a set with no element.
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1. Null set or Empty set 2. Singleton set 3. Pair set
Not necessarily. The odd integers and the even integers are two infinitely large sets. But their intersection is the null (empty) set.
Disjoint sets are sets whose intersection, denoted by an inverted U), produces the null or the empty set. If a set is not disjoint, then it is called joint. [ex. M= {1,2,A} N = {4,5,B}. S intersection D is a null set, so M and N are disjoint sets.
Because they are disjoint, (ie. they contain none of the same elements) their intersection (what they both share in common) is the empty or null set.
The null set is a set which has no members. It is an empty set.