Consistency and permission in deontic justification logic

Abstract Different notions of the consistency obligations collapse in standard deontic logic. In justification logics, which feature explicit reasons for obligations, situation is different. Their strength depends on a constant specification and available set operations combining different reasons. We present principles logic compare their logical strength. propose novel semantics logics with version axiom D, $\textbf {jd}$, are complete arbitrary specifications. Consistency sometimes formulated terms permission. therefore study permission context logic, introducing notion free-choice first time. then discuss philosophical implications regard to some paradoxes.