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I’m a philosopher based in Toronto, specializing in early modern natural philosophy and mathematics, the theory of time, and the infinite. See research interests for details. See also latest news

I am more active than ever in my writing and research collaborations, still supervise students, and teach occasionally, even though I officially retired from McMaster University in July 2018, where I am now Professor Emeritus.

I have two recent books. The first, Monads, Composition, and Force: Ariadnean Threads through Leibniz's Labyrinth, (xv + 329 pages, Oxford University Press) came out at the end of 2018. (I am proud to say it won the 2019 JHP prize for best book in the history of philosophy from 2018.) In it I offer new insights into Leibniz's theory of substance based on his solution to the labyrinth of the continuum, presenting it as a highly original account of the composition of bodies and motions that is neither phenomenalist nor materialist.

The second, The Reality of Time Flowlocal becoming in modern physics (xii + 289 pp.), in Springer's Frontiers Collection, came out in May 2019. In it I defend the reality of (local) becoming in modern physics against the multifarious objections of philosophers from the Ancients through Russell to Smart, Grünbaum and Putnam, and physicists such as Barbour and Rovelli (although Rovelli has since come round to a similar point of view on local becoming)

Also available, my An Introduction to Logic, Using Natural Deduction, Real Arguments, a Little History, and Some Humour (Broadview, 2017)— 2nd (retitled) edition of my Natural DeductionAdopt it for your classes, or buy it to learn logic on your own! It’s inexpensive for a logic text (~$40), and perfect preparation for LSAT, etc.!

For the general reader, I recommend my Leibniz, (Polity Press, 2014), where I give a fresh overview of the great German polymath's thought, with emphasis both on its roots and its contemporary scientific and philosophical relevance.



I have been invited as a speaker and given numerous talks around the globe during the year or so before Covid—including Prague, Toronto, Paris, Harvard, Chapman and Riverside, CA. See conferences and latest news for details. See also my interview with 3:16 a.m. Heavy bedtime reading!

"Many other things I long to be at, but I do extremely want time." --Robert Hooke, 3 Sept 1667

© Richard TW Arthur 2016