One of the most important operations in the set is the intersection. Mathematically, you need to use the ∩ symbol to represent this intersection operation.

Properties | Value |

Symbol | Union |

Argument | No |

Command | \cap |

Example |
\cap → ∩ |

As you may know, the \cup command is used to represent union symbols using latex. In the same way, you need to use the \cap command to represent the intersection symbol.

```
\documentclass{article}
\begin{document}
$$ s_{1} \cap s_{2} $$
\end{document}
```

**Output :**

You may have noticed that the Big Intersection symbol is used in many science documents.

```
\documentclass{article}
\begin{document}
$$ s_{1} \bigcup s_{2} $$
\end{document}
```

**Output :**

In Latex, the default \bigcap command is used to denote this Big Union symbol.

## Latex intersection symbol with latex

When the intersection operation is performed in the n number set. In that case, limits are used above and below the Big Intersection symbol as a sum.

```
\documentclass{article}
\begin{document}
$$ \bigcap\limits_{i=1}^{n}F_{i} $$
$$ \bigcap_{i=1}^{n}A_{i} $$
\end{document}
```

**Output :**

If you use the Big Intersection symbol in the text, that is, inline, then the shape of the symbol can be changed.

```
\documentclass{article}
\begin{document}
latex eqn $\bigcap_{i=1}^{n}x_{i}$
\end{document}
```

**Output :**

If you perform an intersection operation within the disjoint set, it will return an empty set. The \emptyset command is used for this Empty set in Latex.

```
\documentclass{article}
\begin{document}
$$ s_{1}\cap s_{2}=\emptyset $$
\end{document}
```

**Output :**

Many times intersection operations are performed on infinity number sets. In that case, the upper limit would be infinity.

```
\documentclass{article}
\begin{document}
$$ \bigcap_{i=1}^{\infty}A_{i} $$
\end{document}
```

**Output :**

You do not need to install any external packages in Latex for all the symbols used above.