 A relation is typically attributed to a plurality of objects. These jointly instantiate the relation in question, if the attribution is veridical. In this case, the relata (as arguments) and the relation (as attributed) are constituents of a state of affairs. Depending on the number of objects that it can relate, a relation is usually taken to have a number of “places” or a “degree” (“adicity”, “arity”), and is thus called “dyadic” (“two-place”), “triadic” (“three-place”), etc. For example, before and between are dyadic (of degree 2) and triadic (of degree 3), respectively. In line with this, properties and propositions are “monadic” and “zero-adic” predicables, as they are predicated of one, and of no, object, respectively, and may then be seen as limiting cases of relations (Bealer 1982, where properties, relations and propositions are suggestively grouped under the acronym “PRP;” Dixon 2018; Menzel 1986; 1993; Swoyer 1998; Orilia 1999; Van Inwagen 2004; 2015; Zalta 1983). This terminology is also applied to predicates and sentences; for example, the predicate “between” is triadic, and the sentence “Peter is between Tom and May” is zero-adic. Accordingly, standard first-order logic employs predicates with a fixed degree, typically indicated by a superscript, e.g., \(P^1\), \(Q^2\), \(R^3\), etc.