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It is the set of all elements we are considering or dealing with in a given problem. We use a capital U or sometimes capital E to mean the universal set.

Now take ANY two sets, A and B. If every single element of set A is contained in set B, we say A is a subset of B.

The empty set is a subset of every set.

Every set in contained in the universal set, so they are all subset of it.

Q: What the universal set and a subset?

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The null set. It is a subset of every set.

Yes.

If I understand the question correctly then a is a proper subset of u.

There are 250 subsets. That is 1,125,899,906,842,624 of them and I am NOT proposing to list them.

The null set. Every set is a subset of itself and so the null set is a subset of the null set.

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The universal subset is the empty set. It is a subset of all sets.

The null set. It is a subset of every set.

Yes. A null set is always a subset of any set. Also, any set is a subset of the [relevant] universal set.

Yes.

If I understand the question correctly then a is a proper subset of u.

There are 250 subsets. That is 1,125,899,906,842,624 of them and I am NOT proposing to list them.

0 is subset of 0 no doubt. subset means taking part of universal set.here you are taking whole part of universal set.so 0 is subset of 0.

yes ,,,because subset is an element of a set* * * * *No, a subset is NOT an element of a set.Given a set, S, a subset A of S is set containing none or more elements of S. So by definition, the subset A is a set.

The null set. Every set is a subset of itself and so the null set is a subset of the null set.

A subset is a division of a set in which all members of the subset are members of the set. Examples: Men is a subset of the set people. Prime numbers is a subset of numbers.

It isn't. The empty set is a subset - but not a proper subset - of the empty set.

The root word of subset is "set." A subset is a set that is contained within another set.