Tom Beevers
King's College London
I argue that vagueness produces counterexamples to modus tollens. I begin by outlining cases where indicative and counterfactual conditionals seem intuitively to be determinate even when their antecedents are borderline and their consequents are determinately false. Accepting these intuitions has some revisionary implications; however, rejecting them leads to unacceptable consequences for our knowledge of conditionals. I thus take it that we should accept that our intuitions are reliable. I show it follows that modus tollens fails. I conclude by defending this consequence from some objections.
Keywords No keywords specified (fix it)
Categories (categorize this paper)
DOI 10.1093/arisoc/aoaa005
Edit this record
Mark as duplicate
Export citation
Find it on Scholar
Request removal from index
Revision history

Download options

PhilArchive copy

Upload a copy of this paper     Check publisher's policy     Papers currently archived: 63,417
External links

Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
Through your library

References found in this work BETA

On Conditionals.Dorothy Edgington - 1995 - Mind 104 (414):235-329.
A Counterexample to Modus Tollens.Seth Yalcin - 2012 - Journal of Philosophical Logic 41 (6):1001-1024.
Two Recent Theories of Conditionals.Allan Gibbard - 1981 - In William Harper, Robert C. Stalnaker & Glenn Pearce (eds.), Ifs. Reidel. pp. 211-247.
A New Introduction to Modal Logic.G. E. Hughes & M. J. Cresswell - 1996 - Studia Logica 62 (3):439-441.

View all 12 references / Add more references

Citations of this work BETA

No citations found.

Add more citations

Similar books and articles

A Counterexample to Modus Tollens.Seth Yalcin - 2012 - Journal of Philosophical Logic 41 (6):1001-1024.
Modus Tollens Probabilized.Carl G. Wagner - 2004 - British Journal for the Philosophy of Science 55 (4):747-753.
Epistemic Modals and Modus Tollens.Joseph Salerno - 2016 - Philosophical Studies 173 (10):2663-2680.
Modus Ponens Under the Restrictor View.Moritz Schulz - 2018 - Journal of Philosophical Logic 47 (6):1001-1028.
Tempered Pragmatism.Ian Rumfitt - forthcoming - In Cheryl Misak & Huw Price (eds.), The Practical Turn: Pragmatism in Britain in the Long Twentieth Century. British Academy.
Two Sides of Modus Ponens.Stern Reuben & Hartmann Stephan - 2018 - Journal of Philosophy 115 (11):605-621.
Modus Ponens y Modus Tollens.Enrique Trillas Ruiz - 2011 - In Luis Vega and Paula Olmos (ed.), Compendio de Lógica, Argumentación y Retórica. Editorial Trotta.


Added to PP index

Total views
49 ( #217,827 of 2,449,116 )

Recent downloads (6 months)
5 ( #141,481 of 2,449,116 )

How can I increase my downloads?


My notes