# Discrete math symbols and meanings

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## Discrete Mathematics by Babu Ram The union symbol denotes the union of two set s. It is commonly used in mathematics and engineering. The diagram below illustrates set union. Sets A and B are denoted as circles including their interiors. The set A B is represented by the entire shaded region. Compare intersection symbol. Also see Mathematical Symbols.

Math [ Privacy Policy ] [ Terms of Use ]. I know what some are used for, but I don't know what they mean. Like letters of the alphabet, symbols have different meanings in different contexts or situations. I'll give you some meanings of your symbols in mathematical contexts. In symbolic logic a field of math used a lot in computer sciences it is used to denote "not.

## Table of set theory symbols

Press Alt with the appropriate letter. After pasting, you may need to choose the right font in your target application to see all the symbols., By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields.

The element-of symbol is used in mathematical set theory to indicate that a point, object, or number belongs to a certain set. The symbol resembles the lowercase Greek letter epsilon, but stretched out. The symbol is read "is an element of," "is a member of," "is in," or "belongs to. As an example of the use of the element-of symbol, consider that 3 is an element of the set containing the first five positive integers. We write this as follows:.

The element-of symbol is used in mathematical set theory to indicate that a point, object, or number belongs to a certain set. The symbol resembles the lowercase Greek letter epsilon, but stretched out. The symbol is read "is an element of," "is a member of," "is in," or "belongs to. As an example of the use of the element-of symbol, consider that 3 is an element of the set containing the first five positive integers. We write this as follows:. When a point, object, or number does not belong to a specified set, the not-element-of symbol is used.

To denote ratio or odds , as in voiced "two to one". To mean such that in constructions such as voiced "the set of numbers such that. To give a name to a map , e. As a part of the symbol sometimes used to mean " is defined as. To delineate the three elements of trilinear coordinates , i.