# Mathematical Symbols Page #3

#### This page lists all the various symbols in the Mathematical Symbols category.

This is a list of symbols found within all branches of mathematics.

## Symbols in this category:

### Delta

Represents "the change in".

### Derf

Derf is a fictional number, specifically an integer, between six and seven, created as a joke and featured on television show iCarly.

### Division

Divide one number by another.

### Element of

Indicates set membership.

### Empty Set

Represents the set that has no items (i.e., the set that is empty).

### End of Proof

Specifies that you are done with a proof.

### Entails

A |= B if for every A that is true, B is true.

### Equality

Indicates that two sets have the same members.

Equality

### Equivalence

Equivalence is being equivalent or interchangeable. The relationship indicates that both sides are either both true or both false.

### Euler's Number

Approximately equal to 2.71828.

### Everything #2

Everything finite; the full set of definitive knowledge a system is capable of retrieving and ordering.

### Exclamation mark

The exclamation mark or exclamation point is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or high volume (shouting), and often marks the end of a sentence. Example: “Watch out!”

### Factorial

The result of 1 x 2 x 3 ... x n.

### False

This symbol represents the boolean value "false".

### Citation

#### Use the citation below to add this symbols category to your bibliography:

Style:MLAChicagoAPA

"Mathematical Symbols." Symbols.com. STANDS4 LLC, 2024. Web. 22 Apr. 2024. <https://www.symbols.com/category/36/Mathematical+Symbols>.

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