How to Write the Set Union Symbol (∪) in LaTeX

In LaTeX, you can write the set union symbol (∪) using the \cup command.

The following examples show how to write the set union symbol in LaTeX.

How to Write the Set Union Symbol in Text

We can use the \cup command to write the set union symbol in LaTeX document for text.

Suppose we want to write the set union symbol in the text.

We can use the following LaTeX code to do so:

\documentclass{article}
\begin{document}

This is an example of using the set union symbol \(A \cup B\) in a sentence.

\end{document}

Output: 👇️

This is an example of using the set union symbol A ∪ B in a sentence.

In this example, we use the \cup command to display the set union symbol in the text.

How to Write the Set Union Symbol in Mathematical Expressions

For mathematical expressions, we can use the \cup command to ensure proper formatting.

Suppose we would like to write mathematical expressions that contain the set union symbol.

We can use the following LaTeX code to do so:

\documentclass{article}
\usepackage{amsmath}
\begin{document}

An inline mathematical expression: \( A \cup B \).

A displayed mathematical expression:
\[
A \cup B = \{ x \mid x \in A \text{ or } x \in B \}
\]

\end{document}

Output: 👇️

In this example, we use the \cup command to denote the set union symbol in both inline and displayed mathematical expressions.

Conclusion

We can use the \cup command for both text and mathematical expressions. This ensures that the set union symbol is properly formatted and displayed in LaTeX document.