## The Mathematical Symbol "Subset Of (⊂)"

The "Subset Of" Symbol (⊂)

The ⊂ symbol, commonly known as the "Subset Of", is a fundamental mathematical notation used in set theory to indicate that one set is a subset of another. In other words, every element of the first set is also an element of the second set.

## Understanding the Subset Concept

The concept of a subset is foundational in set theory and is used extensively in various branches of mathematics. If set \( A \) is a subset of set \( B \), then all elements of \( A \) are also in \( B \), though \( B \) may have additional elements that \( A \) does not.

## Usage in Mathematics

The ⊂ notation is common in mathematics:

**Set Theory:**To describe the relationship between two sets.**Number Theory:**When discussing properties of number sets.**Geometry:**When defining properties of point sets within a given space.

## Examples

Given two sets \( A = \{1, 2, 3\} \) and \( B = \{1, 2, 3, 4, 5\} \), since all elements of \( A \) are in \( B \), we can say that \( A \) is a subset of \( B \), represented as \( A ⊂ B \).

## Notation

The ⊂ symbol is placed between two sets to indicate the subset relationship. For instance, \( A ⊂ B \) means that \( A \) is a subset of \( B \). Do note that a set is always a subset of itself, which means \( A ⊂ A \) is always true.

## Conclusion

The ⊂ symbol provides a concise way to express the subset relationship between two sets. Understanding this basic concept is crucial for delving deeper into set theory and its applications across various mathematical disciplines.

## Are You Good at Mathematical Symbols?

Do you know, or can you guess, the technical symbols? Well, let's see!**Gold**

**Silver**

**Bronze**

- This test has questions.
- A correct answer is worth 5 points.
- You can get up to 5 bonus points for a speedy answer.
- Some questions demand more than one answer. You must get every part right.
**Beware!**Wrong answers score 0 points.- 🏆 If you beat one of the top 3 scores, you will be invited to apply for the Hall of Fame.

**Scoring System**

Guru (+)

Hero (+)

Captain (+)

Sergeant (+)

Recruit (+)

## Codes for the ⊂ Symbol

The Symbol | ⊂ | |

Alt Code | Alt 8834 | |

HTML Code | ⊂ | |

HTML Entity | ⊂ | |

CSS Code | \2282 | |

Hex Code | ⊂ | |

Unicode | U+2282 |

## How To Insert the ⊂ Symbol

(Method 1) Copy and paste the symbol.

The easiest way to get the ⊂ symbol is to copy and paste it into your document.Bear in mind that this is a UTF-8 encoded character. It must be encoded as UTF-8 at all stages (copying, replacing, editing, pasting), otherwise it will render as random characters or the dreaded �.

(Method 2) Use the "Alt Code."

If you have a keyboard with a numeric pad, you can use this method. Simply hold down the Alt key and type 8834. When you lift the Alt key, the symbol appears. ("Num Lock" must be on.)(Method 3) Use the HTML Decimal Code (for webpages).

HTML Text | Output |
---|---|

<b>My symbol: ⊂</b> | My symbol: ⊂ |

(Method 4) Use the HTML Entity Code (for webpages).

HTML Text | Output |
---|---|

<b>My symbol: ⊂</b> | My symbol: ⊂ |

(Method 5) Use the CSS Code (for webpages).

CSS and HTML Text | Output |
---|---|

<style> span:after { content: "\2282";} </style> <span>My symbol:</span> | My symbol: ⊂ |

(Method 6) Use the HTML Hex Code (for webpages and HTML canvas).

HTML Text | Output |
---|---|

<b>My symbol: ⊂</b> | My symbol: ⊂ |

**0x2282**to place the ⊂ symbol on your canvas. For example:

JavaScript Text |
---|

const x = "0x"+"E9" ctx.fillText(String.fromCodePoint(x), 5, 5); |

Output |

⊂ |

(Method 7) Use the Unicode (for various, e.g. Microsoft Office, JavaScript, Perl).

The Unicode for ⊂ is**U+2282**. The important part is the hexadecimal number after the

**U+**, which is used in various formats. For example, in Microsoft Office applications (e.g. Word, PowerPoint), do the following:

Type | Output |
---|---|

2282 [Hold down Alt] [Press x] | ⊂ (The 2282 turns into ⊂. Note that you can omit any leading zeros.) |

JavaScript Text | Output |
---|---|

let str = "\u2282" document.write("My symbol: " + str) | My symbol: ⊂ |

## You might also like...

#### Help Us Improve Mathematics Monster

- Do you disagree with something on this page?
- Did you spot a typo?

__this form__.

#### Find Us Quicker!

- When using a search engine (e.g., Google, Bing), you will find Mathematics Monster quicker if you add
**#mm**to your search term.

#### Share This Page

If you like Mathematics Monster (or this page in particular), please link to it or share it with others.

If you do, __please tell us__. It helps us a lot!

#### Create a QR Code

Use our handy widget to create a QR code for this page...or any page.

next up:

## More about Mathematical Symbols

Mathematics is a universal language that is used to describe and understand the intricacies of the universe. At the heart of this language are symbols, concise representations that convey specific meanings and ideas.Just as letters come together to form words in spoken languages, mathematical symbols combine to form expressions and equations, encapsulating intricate ideas in a compact form. The history of these symbols is as varied as their meanings; some have been in use for centuries while others have been introduced more recently to describe new discoveries and concepts. Whether you are a student, educator, researcher, or simply curious, this list of mathematical symbols will serve as a guide, shedding light on their meanings, origins, and applications.

From the simple plus and minus signs to the more esoteric and complex, each symbol has its unique story and significance.