not boolean expression

is it posible to implement a `not` boolean expression?
Example:

```
conditions: {
not: {
all: [{
fact: 'gameDuration',
operator: 'equal',
value: 40
}, {
fact: 'personalFoulCount',
operator: 'greaterThanInclusive',
value: 5
}]
}
},
```

Start by reviewing the rule-condition handling and existing condition syntax in the repository, then compare it with the proposed nested `not` and `all` example. Determine how negated conditions should be represented and validated, and confirm completion with coverage for the example behavior.

Written by the indexing model from the issue text.