![]() Since 6 is not an element of set B, we write 6∉B and read it as ‘6 is not an element of set B’ or ‘6 is not a member of set B’. Since 1 is an element of set B, we write 1∈B and read it as ‘1 is an element of set B’ or ‘1 is a member of set B’. We use the symbol ∈ is used to denote membership in a set. ![]() We read this as ‘the set A containing the vowels of the English alphabet’. For example, we can write the set A that contains the vowels of the English alphabet as: We usually separate the elements using commas. Denoting a SetĬonventionally, we denote a set by a capital letter and denote the elements of the set by lower-case letters. To read and write set notation, we need to understand how to use symbols in the following cases: 1. Let’s introduce more symbols and learn how to read and write these symbols. ‘is not a member of’ or ‘is not an element of’ Do you remember the symbols shown in the table below? In the previous article, we used a few of these symbols when describing sets. Set notation is a system of symbols used to: Let’s start with the definition of set notation. Don’t forget to test how much you’ve grasped. You will find a short quiz accompanied by an answer key at the end of this article. You can never tell when set notation will show up, and it can be in your algebra class! Therefore, knowledge of the symbols used in set theory is an asset. This way, we can easily perform operations on sets, such as unions and intersections. ![]() Set notation also helps us to describe different relationships between two or more sets using symbols. Symbols save you space when writing and describing sets. Set notation is used to define the elements and properties of sets using symbols. ![]()
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