 On the second interpretation, the points of Routley-Meyer models are considered to be both operators (in the mathematical sense) and the things that they operate on. On this understanding, \(Rabc\) means that considered as an operator, \(a\) when applied to \(b\) yields information all of which is contained in \(c\). This interpretation makes the Routley-Meyer semantics very similar in intent to Fine’s operational semantics. And this interpretaion is very closely related to Dunn’s interpetation (in particular in his notion of the combining of information in states). 