Letter of the month, May 2018
In this letter to Campbell, Lewis discusses the relationship between tropes and theories of space and time in the philosophy of physics. What is a Trope? Tropes are properties or relations which are not universal, but particular. For instance, the blackness of this...Letter of the month, April 2018
In this letter to Solomon, Lewis reflects on disagreement in philosophy and ascribing mental states to turkeys. Disagreement in Logic and Philosophy Lewis believes that philosophical disagreements often reach a deadlock where neither side will move. Lewis here points...Letter of the month, March 2018
In this letter to Follesdal, Lewis presents an early draft of his famous theory of counterparts. Do Possible Worlds Exist? Famously, Lewis believed in the existence of infinitely many physical possible universes. Lewis had been an early adopter of modal logic. Such...Letter of the month, February 2018
In this letter to Wellesley philosopher Mary Kate McGowan, Lewis discusses causation, explanation, and conceptual analysis in connection with dispositions. Classification, dispositions, and conceptual analysis Lewis tells McGowan that he thinks to have a concept of x...Letter of the month, January 2018
In this letter to Quine Lewis discusses Quine’s contribution to the appendix of Lewis’s set theory book, Parts of Classes. Summary of Letter Lewis argued, in Parts of Classes, for the equation: set theory = mereology + plural quantification + the singleton...
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