Philosophy at Trinity College Dublin where he holds the Chair of Moral Philosophy, established in 1837. He has researched in philosophy since 1972 in the UK, Austria, and Ireland.
Peter has been a Fellow of the British Academy since 2004, chaired their Philosophy Section from 2007-11, and is currently a member of their Council. In 2006 he was elected to the Academia Europaea and in 2013 to the Royal Irish Academy.
Metaphysics and Ontology:
Pure (systematization, categories, nominalism, tropes, naturalism, emergence, quantities,…)
Applied, to various disciplines (database design, manufacturing engineering, enterprise design, physical geography, music,…)
Philosophy of Language and Logic (truthmakers, nominalist semantics, term logic, Lesniewskian logic, categorial grammar)
Philosophy of Mathematics (abstraction, structuralism, numbers, sets, vectors, geometrical algebra)
History of Analytic Philosophy (Bolzano, Frege, Whitehead, Russell, Wittgenstein)
History of Philosophy and Logic in Central Europe (Bolzano, Brentano, Frege, Meinong, Husserl, Twardowski, Lukasiewicz, Lesniewski, Tarski)