I am a Lecturer in Logic, Epistemology, and Metaphysics at the Department of Philosophy at the University of Sydney.

I am also the Department's Postgraduate Study Advisor. Please do contact me with all and any questions that you might have on this front.

My research interests are many (too many perhaps). One is Formal Philosophy - which just means using formal logico-mathematical tools to investigate philosophical problems - which in my case means using weird substructural-logics to model epistemic phenomena, as well as the far uncharted regions of negative information. Here is Maricarmen Martinez and my newly revised coauthored entry on Logic and Information at the Stanford Encyclopedia of Philosophy.

Another is the Philosophy of Information! I have designed what is, I think, the very first undergraduate unit of study on philinfo in Australia. My students over the last three years deserve a round of applause for being the fearless guineapigs that they are (really). We have covered everything from the moral agency of computers, and autonomous weapons platforms and military virtue, through to informational frameworks of cognition and meaning. Rather excitingly, two of them have had their philinfo work accepted to this year's 2021 AAP! At least some of this is Luciano Floridi's fault, since it was Luciano who helped me to become properly facinated in the philosophy of information in the first place. Luciano and I have our new entry on Semantic conceptions of information coming out in the Stanford Encyclopedia of Philosophy in mid-July of 2021. This is very exciting as a lot is happening in the field!

For yet another area (and then I shall stop I promise) - I have a strong interest in the Philosophy of Music. My interest here spans both theory and practice. For the practice side of things, follow the MUSIC link above. The theory side of things is motivated by the following concern...what do non-representational gestures in sonic explorations, in sound art, mean? I do not mean this in a venacular "what does sound art mean for us?" kind of a way, but rather something more concrete. In much the same way that we have theories of meaning for natural languages built upon truth-conditional semantics (for just one example), I want us to have a theory of meaning for sonic gestures. The trick is that contemporary practice in sound art is non-representational, so nothing even vaguely formalist will work (to say nothing of truth-conditional!). The trick I think, is to specify a proper notion of success conditions for the interpretation of sonic gestures, where these conditions in no way turn on latent representations at any stage. After some real time in the field, the pieces are starting to come together.

I studied for my DPhil under Timothy Williamson and Luciano Floridi at Balliol College with the Faculty of Philosophy at the University of Oxford.

In the not altogether too distant past, I have been a Postdoctoral Research Fellow on the Formal Epistemology Project at the Department of Theoretical Philosophy at the Faculty of Philosophy at the University of Groningen, a lecturer in philosophy at St Anne's College, at the University of Oxford, a Visiting Research Fellow at TiLPS, at Tilburg University, a Postdoctoral Researcher at the Centre for Logic, University of Leuven, and a Senior Research Fellow with the IEG at the Department of Computer Science at the University of Oxford.

Contact details

Department of Philosophy
Main Quadrangle A14
University of Sydney
NSW 2006
Australia

email seb: sebastian.sequoiah.grayson {at} sydney.edu.au

email inky: inkythewhiteboardmarker {at} gmail.com