Føllesdal & Hipinen (1971) Deontic logic: Introduction.
Dagfinn Føllesdal & Risto Hipinen, Deontic logic: Introduction. in: Hilpinen, Risto (ed.) (1971). Deontic logic: introductory and systematic readings. Hingham, MA: Sold and distributed in the U.S.A. and Canada by Kluwer Boston. I. THE SUBJECT-MATTER OF DEONTIC LOGIC The word 'deontic' is derived from the Greek word δεóυτως, which may be translated 'as it should be' or 'duly' [적절한 절차에 따라, 예상대로].B..