Source: Notre Dame J. Formal Logic
Volume 49, Number 1
We present axiomatizations of the deontic fragment of Anderson's
relevant deontic logic (the logic of obligation and related
concepts) and the eubouliatic fragment of Anderson's eubouliatic
logic (the logic of prudence, safety, risk, and related concepts).
 Anderson, A. R., and J. N. D. Belnap, "Modalities in Ackermann's `Rigorous Implication'", The Journal of Symbolic Logic, vol. 24 (1959), pp. 107--11.
 Anderson, A. R., "Some nasty problems in the formal logic of ethics", Noûs, vol. 1 (1967), pp. 345--60.
 Anderson, A. R., "A new square of opposition: Eubouliatic logic", pp. 271--84 in Akten des XIV. Internationalen Kongresses für Philosophie, Vol. 2, Herder, Vienna, 1968.
 Anderson, A. R., N. D. Belnap, Jr., and J. M. Dunn, Entailment. The Logic of Relevance and Necessity. Vol. II, Princeton University Press, Princeton, 1992.
 Goble, L., ``The Andersonian reduction and relevant deontic logic,'' pp. 213--46 in New Studies in Exact Philosophy: Logic, Mathematics and Science. Proceedings of the 1999 Conference of the Society of Exact Philosophy, edited by B. Brown and J. Woods, Hermes Science Publications, Paris, 2001.
 Lokhorst, G.-J. C., "Andersonian deontic logic, propositional quantification, and Mally", Notre Dame Journal of Formal Logic, vol. 47 (2006), pp. 385--95.
 The Oxford English Dictionary, 2d edition, Oxford University Press, Oxford, 1989.