He has published over 100 papers and six books, Introducing Analytic Philosophy: Its Sense and Its Nonsense, 1879-2002 (2003), The Positivist and the Ontologist: Bergmann, Carnap and Logical Realism (2001),Russell, Moore, and Wittgenstein (2001), Complexes and Consciousness (2000), Logic, Ontology and Language (1984), and Thought, Fact and Reference: The Origins and Ontology of Logical Atomism (1978), that deal mainly with topics in metaphysics, philosophy of language and mind, ontology, and the history of analytic philosophy.

Recent articles include ‘A World of States of Affairs’ (Nous,1999) and ‘Propositions, Truth and Belief: The Wittgenstein-Russell Dispute’ (Theoria, 2000).

Before coming to Texas, he taught at Northwestern, Indiana, and Minnesota, and has been a visiting professor at Gothenburg, Sweden, and Ohio State. He has held Guggenheim and Fulbright Fellowships.

source: The University of Texas at Austin