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In mathematics, a set is a collection of different things; these things are called elements or members of the set and are typically mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other sets.
- Mathematical Object
Schlegel wireframe 8-cell. A mathematical object is an...
- Element (Mathematics)
In mathematics, an element (or member) of a set is any one...
- Infinite Set
The set of all even integers is also a countably infinite...
- List of set identities and relations
This article lists mathematical properties and laws of sets,...
- Mathematics
The two subjects of mathematical logic and set theory have...
- Mathematical Object
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 mathematics — is mostly concerned with those that are relevant to mathematics as a whole.
A set is an idea from mathematics. A set has members (also called elements ). A set is defined by its members, so any two sets with the same members are the same (e.g., if set and set have the same members, then ). Example of a set of polygons. A set cannot have the same member more than once. Membership is the only thing that matters.
4.1: An Introduction to Sets. Page ID. Harris Kwong. State University of New York at Fredonia via OpenSUNY. Table of contents. Introduction & Real Number Subsets.
Set theory is the study of sets in mathematics. Sets are collections of objects. We refer to these objects as "elements" or "members" of the set. To write a set, one wraps the numbers in {curly brackets}, and separates them with commas. For example. the set holds 1, 2, and 3. Sets are also often referred to using capital roman letters such as , , .
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