Abstract

According to Naming and Necessity, proper names usually work referentially as rigid designators. In this paper, I argue that proper names have also attributive uses that systematically emerge in particular contexts. Attributive uses are then exploited to show that simple identity claims (such as “Hesperus is Phosphorus”) are open to a double interpretation. The main aim of the paper is arguing that the impression that certain true identities are a posteriori is mostly due to one of the two readings, a reading according to which, however, the expressed truth is only contingently true.