Kevin C. Klement

Professor and Chair, Philosophy, UMass Amherst

Editor, Journal for the History of Analytical Philosophy (JHAP)

Board member, Bertrand Russell Society; editorial board member, Russell (Journal)

Mailing address:

Department of Philosophy
150 Hicks Way, E305 South College
University of Massachusetts
Amherst, MA 01003-9274   USA

Contact info:




E319 South College

Office Hours (Fall 2022):

Mondays 10am–11am, Thursdays 11:30am–12:30pm and by appointment




Current courses (Fall 2022)

Past courses

Research and publications

Most of my work has focused on the philosophies of Gottlob Frege and Bertrand Russell, especially their philosophical logics and their import for contemporary discussions in philosophy of language, intensional logic and the philosophy of mathematics. I am also interested in informal logic, ethics, and the history of logic and analytic philosophy generally.

You can also download my CV.

Most of my publications are available below. If not, email me and I’ll send you a copy. Questions and comments welcome.

Works in progress and forthcoming

  • The Oxford Handbook of Bertrand Russell (Editor)
    Forthcoming circa 2020.
  • Russell’s Retreat from Pythagoras

Published book

  • Frege and the Logic of Sense and Denotation
    Routledge 2002.

Published journal articles and book chapters (selected)

  • Logical Form and the Development of Russell’s Logicism
    In Origins and Varieties of Logicism, edited by F. Boccuni and A. Sereni. (Routledge 2022), pp. 147–166.
  • Grundgesetze and the Sense/Reference Distinction
    In Essays on Frege’s Basic Laws of Arithmetic, edited by P. Ebert and M. Rossberg. (Oxford University Press 2019), pp. 142–66.
  • New Logic and the Seeds of Analytic Philosophy: Boole, Frege
    In A Companion to Nineteenth-Century Philosophy, edited by J. Shand. (Wiley Blackwell 2019), pp. 454–79.
  • Russell’s Logicism
    In The Bloomsbury Companion to Bertrand Russell, edited by R. Wahl. (Bloomsbury Academic 2019), pp. 151–78.
  • G. E. Moore’s Unpublished Review of The Principles of Mathematics
    Russell n.s. 38 (2018–19): 131–64.
  • Russell on Ontological Fundamentality and Existence
    In The Philosophy of Logical Atomism: A Centenary Reappraisal, edited by L. Elkind and G. Landini. (Palgrave Macmillan 2018), pp. 155–79.
  • A Generic Russellian Elimination of Abstract Objects
    Philosophia Mathematica 25/1 (2017): 91–115.
  • Three Unpublished Manuscripts from 1903
    Russell n.s. 36 (2016): 5–44.
  • The Constituents of the Propositions of Logic
    In Acquaintance, Knowledge, and Logic: New Essays on Bertrand Russell’s The Problems of Philosophy, edited by D. Wishon and B. Linsky. (CSLI Publications 2015), pp. 189–229.
  • The Russell–Dummett Correspondence on Frege and his Nachlaß
    The Bertrand Russell Society Bulletin no. 150 (2014): 25–29.
  • The Paradoxes and Russell’s Theory of Incomplete Symbols
    Philosophical Studies 169/2 (2014): 183–207.
  • Early Russell on Types and Plurals
    Journal for the History of Analytical Philosophy 2/6 (2014): 1–21.
  • PM’s Circumflex, Syntax and Philosophy of Types
    In The Palgrave Centenary Companion to Principia Mathematica, edited by N. Griffin and B. Linsky. (Palgrave Macmillian 2013), pp. 218–46.
  • Neo-logicism and Russell’s Logicism
    Russell n.s. 32 (2012–13): 127–59.
  • Frege’s Changing Conception of Number
    Theoria 78 (2012): 146–67.
  • The Functions of Russell’s No Class Theory
    Review of Symbolic Logic 3/4 (2010): 633–64.
  • The Senses of Functions in the Logic of Sense and Denotation
    Bulletin of Symbolic Logic 16/2 (2010): 153–88.
  • Gottlob Frege
    In The Routledge Companion to Nineteenth Century Philosophy, edited by Dean Moyar. (Routledge 2010), pp. 858–86.
  • Russell, His Paradoxes and Cantor’s Theorem [Parts I–II]
    Philosophy Compass 5/1 (2010): 16–28 and 29–41.
  • A Cantorian Argument Against Frege’s and Early Russell’s Theories of Descriptions
    In Russell vs. Meinong: The Legacy of “On Denoting”, edited by N. Griffin and D. Jacquette. (Routledge 2008), pp. 65–77.
  • The Origins of the Propositional Functions Version of Russell’s Paradox
    Russell n.s. 24 (2004–05): 101–32.
  • Does Frege Have Too Many Thoughts? A Cantorian Problem Revisited
    Analysis 65/1 (2005): 44–49.
  • Putting Form Before Function: Logical Grammar in Frege, Russell and Wittgenstein
    Philosopher’s Imprint 4/2 (2004): 1–47.
  • Russell’s 1903–05 Anticipation of the Lambda Calculus
    History and Philosophy of Logic 24 (2003): 15–37.
  • The Number of Senses
    Erkenntnis 58 (2003): 302–23.
  • Russell on ‘Disambiguating With the Grain’
    Russell n.s. 21 (2001–02): 101–27.
  • When is Genetic Reasoning not Fallacious?
    Argumentation 16 (2002): 383–400.
  • Russell’s Paradox in Appendix B of the Principles of Mathematics: Was Frege’s Response Adequate?
    History and Philosophy of Logic 22 (2001): 13–28.
  • Is Pacifism Irrational?
    Peace Review 11/1 (1999): 65–70.

Reviews and review essays

  • Review of On the Genealogy of Universals: The Metaphysical Origins of Analytic Philosophy, by Fraser MacBride (Oxford 2018)
    Notre Dame Philosophical Reviews 2018.
  • Review of Basic Laws of Arithmetic, ed. and trans. by P. Ebert and M. Rossberg (Oxford 2013)
    Studia Logica 104 (2016): 175–80.
  • Review of Russell’s Philosophy of Logical Atomism 1897–1905, by Jolen Galaugher (Palgrave Macmillan 2013)
    Journal for the History of Analytical Philosophy 3/2 (2015): 1–7.
  • Review of The Oxford Handbook of the History of Analytic Philosophy, ed. by Michael Beaney (Oxford 2013)
    Notre Dame Philosophical Reviews 2014.
  • Review of Logic as Universal Science: Russell’s Early Logicism and Its Philosophical Context, by Anssi Korhonen (Palgrave Macmillan 2013)
    Russell n.s. 34/1 (2014): 79–84.
  • Review of Russell’s Unknown Logicism, by Sébastien Gandon (Palgrave Macmillan 2012)
    Notre Dame Philosophical Reviews 2012.
  • Review of Russell, by Gregory Landini (Routledge 2011)
    Journal for the History of Analytical Philosophy 1/2 (2012): 21–28.
  • A New Century in the Life of a Paradox: Review of One Hundred Years of Russell’s Paradox, ed. by Godehard Link (de Gruyter 2004)
    Review of Modern Logic 11/1‒2 (2007–2008): 7–29.
  • Review of “On Denoting” 1905–2005, ed. by G. Imaguire and B. Linsky (Philosophia 2005)
    Notre Dame Philosophical Reviews 2006.
  • Review of The Cambridge Companion to Bertrand Russell, ed. by Nicholas Griffin (Cambridge 2003)
    Review of Modern Logic 10/1–2 (2005): 161–70.
  • Review of The Philosophy of Gottlob Frege, by Richard Mendelsohn (Cambridge 2005)
    Notre Dame Philosophical Reviews 2005.
  • A Faithful Companion: Review of The Cambridge Companion to Bertrand Russell, ed. by Nicholas Griffin (Cambridge 2003)
    The Bertrand Russell Society Quarterly no. 121 (2004): 25–41.
  • Review of Logicism and the Philosophy of Language: Selections from Frege and Russell, ed. by A. Sullivan (Broadview 2003)
    The Bertrand Russell Society Quarterly no. 120 (2003): 39–43.
  • Review of From Frege to Wittgenstein: Perspectives on Early Analytic Philosophy, ed. by Erich Reck (Oxford 2002)
    The Review of Metaphysics 57 (2003): 177–178.

Encyclopedia articles

  • Russell’s Logical Atomism (The Stanford Encyclopedia of Philosophy)
  • Frege, Gottlob (The Internet Encyclopedia of Philosophy)
  • Propositional Logic (The Internet Encyclopedia of Philosophy)
  • Paradox, Russell’s (The Internet Encyclopedia of Philosophy)
  • Paradox, Russell-Myhill (The Internet Encyclopedia of Philosophy)
  • Induction and Deduction (The Internet Encyclopedia of Philosophy)
  • Validity and Soundness (The Internet Encyclopedia of Philosophy)
  • Square of Opposition (The Internet Encyclopedia of Philosophy)

Online Editions

I think it is a good idea for academics to produce high-quality editions of important public-domain works, which are often available only in much lower quality than books not in the public domain. This is the only way to preserve the integrity of these texts in the centuries to come.

So far I have worked on three such projects, and hope to do more in the future.

Other E-Projects

Philosophical rock

Monads Logo

I maintain the website for The 21st Century Monads; the rockingest of all Philosophical Rock Bands.

Journal Tools: Typesetting framework and web-based LaTeX editor

I created a web based framework for academic typesetting (originally for JHAP), which I have made freely available and open source. You can find its git repository on Bitbucket.

One of its main components is a live-updating web-based LaTeX editor, K(ev)E(dit), ke for short, built on codemirror, with a PHP backend for saving. This component can be installed and used on its own.

KNAP: Kevin's Neovim AutoPreviewer

KNAP is a configurable lua plugin for neovim that allows for custom-defined routines for launching self-updating previews of documents such as LaTeX, markdown, etc., in the PDF viewer or Web Browser of your choice. Visit its git repo on GitHub for installation and usage instructions.

At some point in the past, I wrote similar plugins for the micro editor, and for regular vim, which may still be floating out there on the internet, though I shudder to think of them now …

gappi: get a PhilPapers item

I wrote gappi, which is a simple bash script for fetching BibTeX records from the PhilPapers database.

Visit the gappi page on Bitbucket for installation and usage information.

Online logic exercises

I am working on creating open source, online logic exercises for various free or open textbooks. Those I created for Gary Hardegree’s Symbolic Logic: A First Course can be found here.

I wrote the first draft of a proof checker for the Forall x book; although I am still working on this project, it has been modified by others as well. A demo page up and running here.

With luck, these will one day be turned either in to Moodle plugins, or LTI tools, or both.

Other/Stuff I Like

Open source/free software

The internet was built on the back on free software, but is increasingly being taken over by commercial interests.

When you give yourself over to Apple, Microsoft, et al., you are making a vote for a more corporation-controlled internet. You are also using products that have been made defective deliberately so that corporations can make more money. Take back the web!

The free-license, open source alternatives may take awhile to learn, but they make up for it in power, efficiency, adaptability and freedom.


As Neal Stephenson has said: “Macs are hermetically-sealed sedans that look great and have a lot of advertising. Windows machines are big SUVs that break often, but they’re everywhere and everyone knows how to use them. Linux computers are free tanks that go 90 mph in swamps, get 100 mpg and never break down.”


Beautiful typography without the proprietary price tag.

Open fonts

Other stuff I like