It is usually a rectangular boundary of a Venn diagram. It is the area surrounding all the circular shapes in these diagrams.
Universal set.
by 7
It is the set of "everything".
If the universal set, U, has N elements then it has 2N subsets.
The null set. It is a subset of every set.
Universal set.
The universal set is the set of all possible elements under consideration. You can have a universal set of all people, or all bird species, or all numbers or whatever. You can even have a universal set of all people and all bird species and all numbers as one big set.
"Universe" and "universal set" are two unrelated concepts.
If the universal set contains N elements then it has 2N subsets.
Yes. A null set is always a subset of any set. Also, any set is a subset of the [relevant] universal set.
by 7
The universal set is the set containing each and every element under consideration.
It is the set of "everything".
If the universal set, U, has N elements then it has 2N subsets.
The complement of an empty set is universal set
The null set. It is a subset of every set.
null set ,universal set,cardinality set