Ebook: What is this thing called adat logic?

The notion of adat (or custom) law does not encourage people in philosophy
to reveal its logic. This article aims to investigate the possibility of adat
logic, its variety, and a possible common ground or thesis among its own
kinds. In general, the adat logic means the true contradiction between the
rigidity and the reflexibility of custom. In other words, it resembles the idea
of dialetheia in modern logic, but it does not mean that the adat logic is a
subdivision of the former. To seek a thesis of adat logic is to discuss the
Javanese and Minangkabaunese adat logics, and I transform both logics
into some notations for the sake of avoiding unnecessary linguistic
challenges and hurdles. Thus, I insert each notation of a particular adat
logic into the general notation of adat logic. By doing so, I wish to discover
a common ground between some different adat logics.