Once example is the whole numbers and subsets are the numbers 1,2 and 3
written {1,2,3}.
Another example is all the colors. Subsets would be any number of individual colors.
The universal set may be finite or infinite.
Universal set.
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.
Yes.
A cars driveshaft, a cars steering column, a socket 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.
The universal set is the set containing each and every element under consideration.
something awesome
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.