Deontic Logic, Weakening and Decisions Concerning Disjunctive Obligations

This paper introduces two new paradoxes for standard deontic logic (SDL). They are importantly related to, but distinct from Ross' paradox. These SDL the simple weakening paradox and complex Both of these arise in virtue underlying consequences fact that incorporates principle known as weakening. then show has counter-intuitive implications to disjunctive obligations decisions concerning how discharge such obligations. The main result here is theorem T1 a problematic component needs be addressed.