> For the complete documentation index, see [llms.txt](https://calnotes.gitbook.io/cs61a-guidebook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://calnotes.gitbook.io/cs61a-guidebook/building-blocks/control-flow/what-are-logical-operators/logical-operators-seemingly-illogical-behavior.md).

# Logical Operators, Seemingly Illogical Behavior

And now an example that contains both `and` and `or`:

```python
>>> 1 or 0 and 1/0 or 2
```

And this statement gets tricky to comprehend! Here's the core idea: **the `and` operator takes precedence over the `or` operator.**

In simpler English, what this means is that the statement looks something like this:

```python
>>> 1 or (0 and 1/0) or 2
```

This statement first evaluates `1`, finds it to be a truthy value, and immediately returns it. This is why the `1/0` doesn't throw an error.

Try this one yourself:

```python
>>> 0 or None and 1/0 or 2
```

Now that you've given this a shot, let's walk through it together! 

```python
>>> 0 or None and 1/0 or 2
>>> 0 or (None and 1/0) or 2
```

First, the `or` statement evaluates 0. Finding it to be a false-y value, it keeps going. It evaluates `(None and 1/0)` next. In this, the `and` finds `None` to be the first false-y value, and immediately returns it. The outer `or` statements sees `None` as the next value, and keeps going. It therefore returns `2`, the first truth-y value it finds! 


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