The GP said "usable interchangeably", which is vague enough to admit a wide variety of interpretations, including the more rigorous one Koshkin posted.
Re:They don't even know the fundamentals
by marcosdumay on Tuesday November 02, 2021 @02:20PM
(#29085312)
Yet he got unambiguously declared wrong...
Yet the GP says exactly the same thing as you said. He just ignored that the property belongs to the base class.