Totally irrelevant. The point was that those dichotomies don't exist and you can't prove them even to someone who has all the goodwill in the world (that doesn't include blind belief).
Then, you can check my posting history for explanations almost all my understanding, how the approach I use neatly, this time for real, matches everything with new insights and realizations of why old things were there already in the Socionics model descriptions. My last one is here, three posts. Things match perfectly with all what we know, descriptions of types and functions, quadra values, it's all explained there for a child to understand.
Now please, don't focus on me anymore, because I don't use j/p more than Irrationality/Rationality on functions so I don't have to prove anything about this matter, until the contrary is proven (by you or myself), these dichotomies simply don't exist for me.