Sem\^antica relacional para a l\'ogica proposicional do plaus\'ivel
  This article aims to present a neighborhood semantic for a modal logic, namely, propositional logic of the plausible. As a subnormal character modal logic, not admits a Kripke semantics. However, the authors show that this neighborhood semantic, reach a relational semantics for propositional logic of the plausible. 
Tiago Augusto dos Santos Boza and H\'ercules de Araujo Feitosa
math.LO