Does an is_even function have an is_odd feature implemented?
Does an is_divisible_by_200 have an is_not_divisible_by_3 feature implemented?
Does a physics simulator have an "accelerate upwards" feature?
No, it's a bug/emergent property and interpreting it as a feature is a simple misunderstanding of the software.
Semantics matter, just because you can potentially negate a variable (or multiply it by any number) doesn't mean that property is inherent to the program.