public override Sentence VisitBinarySentence(ComplexSentence s, object arg) { Sentence result = null; if (s.IsImplicationSentence()) { // Elimina =>, reemplazando & alpha; => β< br > con ~α | β Sentence alpha = s.GetSimplerSentence(0).Accept(this, arg); Sentence beta = s.GetSimplerSentence(1).Accept(this, arg); Sentence notAlpha = new ComplexSentence(Connective.NOT, alpha); result = new ComplexSentence(Connective.OR, notAlpha, beta); } else { result = base.VisitBinarySentence(s, arg); } return(result); }