Relevant predication: Grammatical characterisations (Q918534)

In quantified relevance logic it is important to consider how a property may, in some sense, be relevant to its objects. In particular, it may be necessary to restrict the principle of the idiscernibility of identicals to contexts which express such relevant properties. Here the author reformulates a proposal of Dunn's for a property's being relevant in a variable x, and distinguishes a strong and a weak sense of this notion. He then shows how these senses are significantly analogous to a more grammatical characterization given by Helman. There is also an investigation of Fine's semantics for quantified relevance logic.