# Logical Operators

Logical operators combine boolean expressions.

| Operator | Meaning                        | Example           |
| -------- | ------------------------------ | ----------------- |
| `and`    | true if both operands are true | `x > 0 and y > 0` |
| `or`     | true if either operand is true | `x > 0 or y > 0`  |
| `not`    | inverts truth value            | `not is_valid`    |

## Example

```python
x = True
y = False

print(x and y)  # False
print(x or y)   # True
print(not x)    # False
```

## Truth Tables

`and`

| A     | B     | A and B |
| ----- | ----- | ------- |
| True  | True  | True    |
| True  | False | False   |
| False | True  | False   |
| False | False | False   |

`or`

| A     | B     | A or B |
| ----- | ----- | ------ |
| True  | True  | True   |
| True  | False | True   |
| False | True  | True   |
| False | False | False  |

`not`

| A     | not A |
| ----- | ----- |
| True  | False |
| False | True  |

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