Precisely. By being opposites, they are used within the same
   context. They are interchangeable terms. The results change, but
   they are interchangeable: For any given circumstance where one
   could use TRUE, One could also use FALSE. This may result in a
   fiction but nevertheless, they are interchangeable. They are
   both members of a set known as "Boolean Data Types". There are
   two items within the set of boolean data types: True False This
   is the level of abstraction I'm referring to.