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- PhD, 1997
- History of Western Philosophy, Metaphysics and Epistemology, Value Theory, Philosophical Traditions, Other Academic Areas
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- PhD, 2007
- Logic and Philosophy of Logic, General Works, Logic and Philosophy of Logic, Misc, Logical Pluralism, Epistemic Logic, Formal Epistemology, Methods in Political Philosophy, Many-Valued Logic, Paraconsistent Logic, Epistemology of Disagreement, Metaphilosophy