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# What does this mean Which set of these numbers is closed under division?

Wiki User

2009-11-20 21:30:29

It means that dividing any number in the set by any other number in the set is valid, and that the result is again a member of the set.

For example, the set of real numbers is NOT closed under division - you can't divide by zero.

The set of real numbers, excluding zero, IS closed under division. Similarly, the set of rational numbers excluding zero is also closed under division.

It means that dividing any number in the set by any other number in the set is valid, and that the result is again a member of the set.

For example, the set of real numbers is NOT closed under division - you can't divide by zero.

The set of real numbers, excluding zero, IS closed under division. Similarly, the set of rational numbers excluding zero is also closed under division.

It means that dividing any number in the set by any other number in the set is valid, and that the result is again a member of the set.

For example, the set of real numbers is NOT closed under division - you can't divide by zero.

The set of real numbers, excluding zero, IS closed under division. Similarly, the set of rational numbers excluding zero is also closed under division.

It means that dividing any number in the set by any other number in the set is valid, and that the result is again a member of the set.

For example, the set of real numbers is NOT closed under division - you can't divide by zero.

The set of real numbers, excluding zero, IS closed under division. Similarly, the set of rational numbers excluding zero is also closed under division.

Wiki User

2009-11-20 21:30:29
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## A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Wiki User

2009-11-20 21:30:29

It means that dividing any number in the set by any other number in the set is valid, and that the result is again a member of the set.

For example, the set of real numbers is NOT closed under division - you can't divide by zero.

The set of real numbers, excluding zero, IS closed under division. Similarly, the set of rational numbers excluding zero is also closed under division.