Dyadicism is a species of reductionism amounting to the assertion that any explainable phenomenon can be explained in terms of dyadic relations, that is, by means of 2-dimensional arrays or square matrices.
Analyzed on purely formal, logical, or mathematical grounds, the assumption is quickly seen to be untenable, but there's always the Chance that Nature is Content to Actualize but a Part of the Whole Potential of Form, and so it becomes a fair empirical question to ask whether the premiss of dyadicism might be True In Practice (TIP).
I would have to say
Jon