sentences:  deontic logics and argumentation) to represent and reason upon them, leading eventually to architecture for cognitive agents while implicit norms are accounted as patterns emerging from repeated interactions amongst agents (typically reinforced learning agents).Explicit norms are typically represented as a deontic statement that aims at regulating the life of software agents and the interactions among them.It can be an obligation, a permission or a prohibition, and is often represented with some dialect or extension of Deontic logic.