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Set builder notation is a concise way to describe a set by specifying the properties that its members must satisfy. It is particularly useful for representing sets with a large or infinite number of elements.
Definition and Symbols
Set builder notation uses a variable, a vertical line or colon, and a condition that the elements must satisfy. For example, the set of all natural numbers greater than 5 can be written as:
A = { x | x ∈ ℕ, x > 5 }This reads as "A is the set of all x such that x is a natural number and x is greater than 5"1.
Examples
Here are some examples of sets written in set builder notation:
Set of Even Natural Numbers Less Than 15:
A = { x | x ∈ ℕ, x is even, and x < 15 }This represents the set {2, 4, 6, 8, 10, 12, 14}2.
Set of Rational Numbers:
Q = { p/q | p, q ∈ ℤ, q ≠ 0 }This represents the set of all rational numbers, where p and q are integers and q is not zero2.
Set of Real Numbers Between 2 and 6:
B = { x | x ∈ ℝ, 2 ≤ x ≤ 6 } Set-Builder Notation - Math is Fun
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Learn how to use set builder notation to represent sets with common properties. See examples of set builder notation with intervals, variables, and equations.
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Jun 7, 2024 · Set builder notation (or rule method) is a mathematical representation of a set by listing the elements or highlighting their common properties. Here, we ‘build’ the set by defining the logical properties of its …
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Jan 30, 2021 · Learn how to describe a set by listing its elements or demonstrating its properties using set builder notation. See examples of set builder notation with symbols, such as ∈, ∉, …
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Learn how to define and describe sets using symbols in set builder notation. See examples, compare with roster method and interval notation, and practice problems.
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Aug 2, 2022 · We can write the domain and range in interval notation, which uses values within brackets to describe a set of numbers. In interval notation, we use a square bracket [ when the set includes the endpoint and a parenthesis ( to …
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Set-builder notation can be used to describe a set that is defined by a predicate, that is, a logical formula that evaluates to true for an element of the set, and false otherwise. [2] In this form, …
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Jan 20, 2020 · So when we want to list the members in a set we use set builder notation. It is a clear way to organize variables and elements that are included in our set and one of the most common methods for describing domain and range.
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Nov 21, 2023 · What is an example of set-builder notation? The following is one such example: A = {x | x is an element of R, x > a} That notation means the set of all "x" such that "x" is a real...
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In mathematics, set builder notation is a way of representing sets of numbers using a formula. The set builder notation uses the symbol “∈” to represent “is an element of.” For example, the set …
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