I am Chairperson and Associate Professor in the Department of Philosophy at the University of Hong Kong. My research falls mainly into the areas of Metaphysics, Philosophy of Language, and Philosophy of Science. I also have interests in Epistemology, History of Modern Philosophy, Metaethics, and Philosophy of Logic.
Much of my research focuses on truth; my book The Primitivist Theory of Truth defends the view that truth is an undefinable primitive concept. My second book A Theory of Truthmaking defends the role of truthmaking arguments in philosophy. I have also published on the topics of deflationary truth, moral realism, scientific realism, Tarski, modality, theories of ontological commitment, presentism, and the liar paradox.