I'm a researcher in the Logic of Conceivability project at the Institute for Logic, Language and Computation at the University of Amsterdam. I defended my Ph.D in January 2017 at the Stanford department of philosophy. My advisors were Johan van Benthem and Krista Lawlor.

I work on epistemology, logic, and related topics on mind, language and rationality. My research explores the interaction between knowledge, meaning and modality: Google Scholar, Philpapers.

I'm from South Africa. I studied mathematics and, later, philosophy at University of the Witwatersrand.

Reach me at: p DOT m DOT hawke AT uva DOT nl

Knowledge and Knowability

Questions, Topics and Restricted Closure

Philosophical Studies 173 (10): 2759-2784. 2016.

The Problem of Epistemic Relevance

PhD Dissertation, Stanford University

[Updated ILLC dissertation series version]

Modal Discourse

Informational Dynamics of Epistemic Possibility Modals

With Shane Steinert-Threlkeld. Synthese. Forthcoming.

Subject Matter and Aboutness

Theories of Aboutness

Australasian Journal of Philosophy. Forthcoming.

Epistemology of Modality

Van Inwagen’s Modal Skepticism

Philosophical Studies 153 (3): 351-364. 2011.

Can Modal Skepticism Defeat Humean Skepticism?

Modal Epistemology After Rationalism, ed. Fischer and Leon, Synthese Library: 281-308. 2017 [Draft]

Strategic Ability and Information

The Logic of Joint Ability in Two-Player Tacit Games

The Review of Symbolic Logic 10 (3): 481-508. 2017.

Markov Operators On Banach Lattices

Markov Operators on Banach Lattices

M.Sc Dissertation, University of the Witwatersrand, Johannesburg.