Mark Steiner, 1942–2020

Mark Steiner, Professor emeritus of Philosophy at Hebrew University in Jerusalem, died April 6, 2020 of complications from COVID-19. He was a leading philosopher of mathematics, who was especially well known for his books The Applicability of Mathematics as a Philosophical Problem (1998, Harvard University Press) and Mathematical Knowledge (1975, Cornell University Press) and his pioneering work on explanation in mathematics.