Question regarding concepts in Plato's works

Hi

Is it correct to say that Plato used the following processes of: reasoning, intuition, *a priori, *Triadic interpretation and *Dyadic Intuitionism in his works e.g… Phaedrus, and can anyone tell me if *a priori is an appropriate term to use in the context of Plato. ?
(HOPE MY DEFINITIONS BELOW ARE OK.). I have seen the above (*a priori, *Triadic interpretation and *Dyadic Intuitionism) bandied about but not very well explained.

triadic: speaker serves as a mediator between those who are listening and what that text might mean.???
a priori: A priori means (literally): prior to experience. A priori knowledge is knowledge that is justifiable independently of experience.
(Kant was not the first to use the concept of a priori knowledge form")
Dyadic Intuitionism??? (no idea)…Perhaps someone can help me with a definition here!

I look forward to your feedback.
davidmich