Your ability to misconstrue what was said is amazing. I said 2VL AND 3VL have to do with the management of missing data. That is what differentiates them.
Quoting out of context is something that Liberals do. You should be ashamed.
But since you don't know what nulls are, you withdraw to what you think is a defensible position.
Do you work for the New York Times? Misrepresenting my position, which can be seen by everyone on the thread, is pretty sad.
Admit you don't know what 3VL is and how it works in Boolean algebra (as I pointed out to you in my 297) and then you can learn.
YOU, OTOH said that 2VL and Boolean Algebra are the same thing. And that is NOT out of context. And it is 100% WRONG.
So you are triply busted. You should quit while you are only a little behind.
Find help fast. You're sinking like a rock and nobody is willing to come to your aid.
Why?
Because you're wrong! LOL