# rules

The rules of the snapshot: `strength`, the `head_predicate` with its `head_polarity`, and the variable and predicate sets of the head and the body. The sets are name lists, not the structure of the condition. A rules row proves what the rule says. Whether it fires for a case is decided by evaluation, not by this table.

## Fields

From the live dictionary on the reference fixture:

| field |
|---|
| `id` |
| `strength` |
| `head_predicate` |
| `head_polarity` |
| `head_variables` |
| `body_variables` |
| `body_predicates` |
| `package` |
| `path` |

## Example

One meaningful query on the reference fixture (4 rows):

```lawq
from r in rules where r.strength == "strict" select r.id as rule
```