Adjoint negations, more than residuated negations

摘要: Negation operators are useful operators, which have extensively been studied and used in different fuzzy settings, such as logic. This paper introduces a new flexible kind of negation operator, based on adjoint triples, is called relative to fixed element.Besides proving several interesting properties, the comparison with weak negations, by Trillas, Esteva et al., pairs negations introduced Georgescu Popescu, presented. Furthermore, order define corresponding dual disjunctive an conjunctor.