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Set (mathematics) - Wikipedia

In mathematics, a set is a collection of different things; the things are elements or members of the set and are typically mathematical objects: numbers, symbols, points in space, lines, other geometric shapes, variab...

www.mathsisfun.com

Introduction to Sets - Math is Fun

When talking about sets, it is fairly standard to use Capital Letters to represent the set, and lowercase letters to represent an element in that set. So for example, A is a set, and a is an element in A. Same with B ...

www.cuemath.com

Sets - Definition, Symbols, Examples | Set Theory - Cuemath

Sets are defined as a collection of distinct elements. The elements of a set share a common characteristic among them. Learn about sets definition, representation, types, symbols, formulas, and their properties with s...

www.math.cmu.edu

21-110: Sets - math.cmu.edu

Mar 19, 2010 · The concept of a set is one of the most fundamental ideas in mathematics. Essentially, a set is simply a collection of objects. The field of mathematics that studies sets, called set theory, was founded...

www.math.net

Set

A set is a collection of mathematical objects. Mathematical objects can range from points in space to shapes, numbers, symbols, variables, other sets, and more.

www.britannica.com

Set | Definition & Facts | Britannica

Sep 27, 2025 · Set, in mathematics and logic, any collection of objects (elements), which may be mathematical (e.g., numbers and functions) or not. A set is commonly represented as a list of all its members enclosed i...

www.thefreedictionary.com

Set - definition of set by The Free Dictionary

1. To put in a specified position or arrangement; place: set a book on a table; set the photo next to the flowers. 2. a. To put into a specified state: set the prisoner at liberty; set the house ablaze; set the machin...

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Set theory - Wikipedia

Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory – as a branch of math...