Argumenta – Journal of Analytic Philosophy

David Lewis may be regarded as an antiessentialist. The reason is that he is said to believe that individuals do not have essential properties independent of the ways they are represented. According to him, indeed, the properties that are determined to be essential to individuals are a matter of which similarity relations among individuals are salient, and salience, in turn, is a contextual matter also determined to some extent by the ways individuals are represented. Todd Buras argues that the acknowledgment of natural properties in counterpart theoretic ontology affects Lewis’s…

In this note, I am critical of some aspects of David Lewis’s resolution of the Grandfather Paradox. In particular, I argue that Lewis gives the wrong explanation of Tim’s inability to kill Grandfather, and that the correct explanation makes essential reference to the self-undermining character of Tim’s grampicide.