Elected 1984
British Academy appointments Member of Council 1993 - 1996
Metaphysics of science, in particular causation, laws of nature and natural kinds; the metaphysics of free will and moral responsibility; the epistemology of analytic philosophy
Philosophy of language, logic, epistemology; ancient philosophy; determinism, freedom and moral responsibility
The Medieval Latin reception of Aristotle's philosophy in the thirteenth and fourteenth centuries, especially natural philosophy, rational psychology, and metaphysics; critical editions of Medieval Latin philosophical texts