Final answer:
The law of identity applies to negative expressions in logic.
Step-by-step explanation:
The law of identity is a fundamental principle in logic that states that something is always equal to itself. It applies to all expressions, including negative expressions. In logic, a negative expression is one that negates a statement. For example, if we have the statement 'The car is red,' the negation would be 'The car is not red.'
When applying the law of identity to negative expressions, we can still use the same principle that something is always equal to itself. In the example above, 'The car is not red' is still referring to the same car, but stating that it is not red. So, the law of identity holds true for negative expressions as well.
Overall, the law of identity applies to both positive and negative expressions in logic, ensuring that something remains consistent with itself regardless of whether it is negated or not.