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The ∈ (member of) symbol indicates that an expression on the left-hand side of the symbol belongs to or is in the set on the right-hand side of the symbol. Typically the symbol is used in an expression like this: x ∈ R.
The symbol appears as a stylized uppercase "E" (∈) and is used to indicate that an element belongs to a set. Meaning and Usage The primary meaning of the ∈ symbol is to indicate that a particular element is a member of a set.
Jun 25, 2014 · The relation "is an element of", also called set membership, is denoted by the symbol "∈". Writing {\displaystyle x\in A} x\in A means that "x is an element of A". Equivalent expressions are "x is a member of A", "x belongs to A", "x is in A" and "x lies in A".
(vi) The Greek letter Epsilon ‘∈’ is used for the words ‘belongs to’, ‘is an element of’, etc. Therefore, x ∈ A will be read as ‘x belongs to set A’ or ‘x is an element of the set A'.
An Italian mathematician, Giuseppe Peano used a Greek letter lunate epsilon ( ∈) for expressing the phrase “belongs to” symbolically in set theory. It helps us to express the relationship between an element and its set in mathematical form. Usage. Let’s learn how to use the symbol epsilon in set theory from two understandable examples.
Set theory symbols are used for various set operations such as intersection symbol, union symbol, subset symbol, etc. Visit BYJU'S to learn more about set theory symbols.
Mar 5, 2024 · The most typical set symbol is “∈,” which stands for “membership” and is pronounced as “belongs to”. “∈” indicates that an element is part of a specific set. In contrast, “∉” signifies that an element does not form part of a set. ⊆, ⊂, ∪, ∩, ∅, etc. are some of the common examples of symbols in set theory.
