# Literals

Literals are predefined constant values in Internet Object that represent common data states and special values. They provide a concise way to express boolean values, null states, and special numeric values without requiring quotes or additional syntax.

## Supported Literals

Internet Object supports the following literal values:

| Literal | Type    | Represents                    | Case Sensitive |
| ------- | ------- | ----------------------------- | -------------- |
| `true`  | Boolean | True value                    | Yes            |
| `T`     | Boolean | True value (short form)       | Yes            |
| `false` | Boolean | False value                   | Yes            |
| `F`     | Boolean | False value (short form)      | Yes            |
| `null`  | Null    | Null/empty value              | Yes            |
| `N`     | Null    | Null/empty value (short form) | Yes            |
| `Inf`   | Number  | Positive infinity             | Yes            |
| `-Inf`  | Number  | Negative infinity             | Yes            |
| `NaN`   | Number  | Not a Number                  | Yes            |

## Examples

```ruby
# Boolean literals
~ isActive: true, verified: F, isDeleted: false, visible: T

# Null literals
~ middleName: null, nickname: N

# Special numeric literals
~ maxValue: Inf, minValue: -Inf, result: NaN
```

## Rules

* **Case Sensitive**: All literals must use exact case (`True`, `FALSE`, `NULL` are invalid)
* **No Quotes**: Literals are written without quotes
* **Short Forms**: Single-letter shortcuts available for brevity

## See Also

* [**Boolean Values**](https://docs.internetobject.org/the-structure/values/booleans) - Detailed boolean type specification
* [**Null Values**](https://docs.internetobject.org/the-structure/values/null) - Null type and optional values
* [**Number Literals**](https://docs.internetobject.org/the-structure/values/number/nan-and-infinity) - Numeric types including special values