Journal of Philosophy (forthcoming)

Authors
Matthew Mandelkern
Massachusetts Institute of Technology (PhD)
Abstract
The Identity principle says that conditionals with the form 'If p, then p' are logical truths. Identity is overwhelmingly plausible, and has rarely been explicitly challenged. But a wide range of conditionals nonetheless invalidate it. I explain the problem, and argue that the culprit is the principle known as Import-Export, which we must thus reject. I then explore how we can reject Import-Export in a way that still makes sense of the intuitions that support it, arguing that the differences between indicative and subjunctive conditionals play a key role in solving this puzzle.
Keywords conditionals  Import-Export  Identity  logic of conditionals
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References found in this work BETA

Aboutness.Stephen Yablo - 2014 - Princeton University Press.
Saving Truth From Paradox.Hartry Field - 2008 - Oxford University Press.
Epistemic Modals.Seth Yalcin - 2007 - Mind 116 (464):983-1026.

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Citations of this work BETA

Talking About Worlds.Matthew Mandelkern - 2018 - Philosophical Perspectives 32 (1):298-325.
A Counterexample to Modus Ponenses.Matthew Mandelkern - 2020 - Journal of Philosophy 117 (6):315-331.
Roads to Necessitarianism.Matthew Mandelkern & Daniel Rothschild - 2021 - Journal of Philosophical Logic 50 (1):89-96.

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