not¶
Description¶
To negate any condition, use not.
Unknown values¶
not follows three-valued logic: not true is false, not false is true, and not unknown stays unknown - if we do not know the underlying value, we cannot know its negation either.
Example¶
This simply gets you the opposite result from using p.domicile = ch . If the person in the case does not live in Switzerland, this condition evaluates as true.