# Question: What does Closure property show about real numbers?

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## Is closure property true for natural numbers?

Natural numbers are always closed under addition and multiplication. … In the case of subtraction and division, natural numbers do not obey closure property, which means subtracting or dividing two natural numbers might not give a natural number as a result.

## What does it mean if a set of numbers are closed?

In mathematics, a set is closed under an operation if performing that operation on members of the set always produces a member of that set. For example, the positive integers are closed under addition, but not under subtraction: 1 − 2 is not a positive integer even though both 1 and 2 are positive integers.

## What does the closure property mean?

The closure property means that a set is closed for some mathematical operation. … For example, the set of even natural numbers, [2, 4, 6, 8, . . .], is closed with respect to addition because the sum of any two of them is another even natural number, which is also a member of the set.

## What is the use of closure property in maths?

In summary, the Closure Property simply states that if we add or multiply any two real numbers together, we will get only one unique answer and that answer will also be a real number. The Commutative Property states that for addition or multiplication of real numbers, the order of the numbers does not matter.

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## Is 0 a real number?

Real numbers can be positive or negative, and include the number zero. They are called real numbers because they are not imaginary, which is a different system of numbers.

## How do you prove closure property?

The Property of Closure

1. A set has the closure property under a particular operation if the result of the operation is always an element in the set. …
2. a) The set of integers is closed under the operation of addition because the sum of any two integers is always another integer and is therefore in the set of integers.

## How do I find closure properties?

If a and b are two whole numbers and their sum is c, i.e. a + b = c, then c is will always a whole number. For any two whole numbers a and b, (a + b) is also a whole number. This is called the Closure-Property of Addition for the set of W.

## How do you get a closure property?

The sum of any two integers will always be an integer, i.e. if a and b are any two integers, a + b will be an integer. Closure property of integers under subtraction: The difference between any two integers will always be an integer, i.e. if a and b are any two integers, a – b will be an integer.

## What is closure property give examples?

The Closure Properties

Real numbers are closed under addition, subtraction, and multiplication. That means if a and b are real numbers, then a + b is a unique real number, and a ⋅ b is a unique real number. For example: 3 and 11 are real numbers.

## What is the closure property in polynomials?

CLOSURE: Polynomials will be closed under an operation if the operation produces another polynomial. … This guarantees that the sum has variables and exponents which are already classified as belonging to polynomials. Polynomials are closed under addition.

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## What is Closure property in integers?

Closure property of integers under multiplication states that the product of any two integers will be an integer i.e. if p and q are any two integers, pq will also be an integer. Example : 5 × 7 = 35 ; (–4) × (7) = −28, which are integers. … Example : (−3) ÷ (−12) = ¼ , is not an integer.