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Profile: Justin Khoo (Massachusetts Institute of Technology)
  1. Justin Khoo & Joshua Knobe (2016). Moral Disagreement and Moral Semantics. Noûs 50 (2).
    When speakers utter conflicting moral sentences, it seems clear that they disagree. It has often been suggested that the fact that the speakers disagree gives us evidence for a claim about the semantics of the sentences they are uttering. Specifically, it has been suggested that the existence of the disagreement gives us reason to infer that there must be an incompatibility between the contents of these sentences. This inference then plays a key role in a now-standard argument against certain theories (...)
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  2.  69
    Justin Khoo (2016). Probabilities of Conditionals in Context. Linguistics and Philosophy (1):1-43.
    The Ramseyan thesis that the probability of an indicative conditional is equal to the corresponding conditional probability of its consequent given its antecedent is both widely confirmed and subject to attested counterexamples (e.g., McGee 2000, Kaufmann 2004). This raises several puzzling questions. For instance, why are there interpretations of conditionals that violate this Ramseyan thesis in certain contexts, and why are they otherwise very rare? In this paper, I raise some challenges to Stefan Kaufmann's account of why the Ramseyan thesis (...)
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  3. Justin Khoo (2015). Modal Disagreements. Inquiry (5):1-24.
    It is often assumed that when one party felicitously rejects an assertion made by an- other party, the first party thinks that the proposition asserted by the second is false. This assumption underlies various disagreement arguments used to challenge contex- tualism about some class of expressions. As such, many contextualists have resisted these arguments on the grounds that the disagreements in question may not be over the proposition literally asserted. The result appears to be a dialectical stalemate, with no independent (...)
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  4.  48
    Justin Khoo (forthcoming). Backtracking Counterfactuals, Revisited. Mind.
    I discuss three observations about backtracking counterfactuals not predicted by existing theories, and then motivate a theory of counterfactuals that does predict them. On my theory, counterfactuals quantify over a suitably restricted set of historical possibilities from some contextually relevant past time. I motivate each feature of the theory relevant to predicting our three observations about backtracking counterfactuals. The paper concludes with replies to three potential objections.
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  5.  64
    Justin Khoo (2015). On Indicative And Subjunctive Conditionals. Philosophers' Imprint 15 (32).
    At the center of the literature on conditionals lies the division between indicative and subjunctive conditionals, and Ernest Adams’ famous minimal pair: If Oswald didn’t shoot Kennedy, someone else did. If Oswald hadn’t shot Kennedy, someone else would have. While a lot of attention is paid to figuring out what these different kinds of conditionals mean, significantly less attention has been paid to the question of why their grammatical differences give rise to their semantic differences. In this paper, I articulate (...)
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  6.  9
    Justin Khoo (forthcoming). The Disagreement Challenge to Contextualism. In Jonathan Jenkins Ichikawa (ed.), Routledge Handbook of Epistemic Contextualism.
  7.  19
    Justin Khoo (2016). Conditionals and Questions. Linguistics and Philosophy 39 (1):51-55.
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  8. Justin Khoo (2013). Conditionals, Indeterminacy, and Triviality. Philosophical Perspectives 27 (1):260-287.
    This paper discusses and relates two puzzles for indicative conditionals: a puzzle about indeterminacy and a puzzle about triviality. Both puzzles arise because of Ramsey's Observation, which states that the probability of a conditional is equal to the conditional probability of its consequent given its antecedent. The puzzle of indeterminacy is the problem of reconciling this fact about conditionals with the fact that they seem to lack truth values at worlds where their antecedents are false. The puzzle of triviality is (...)
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  9.  21
    Justin Khoo (2011). Operators or Restrictors? A Reply to Gillies. Semantics and Pragmatics 4:1-25.
    According to operator theories, "if" denotes a two-place operator. According to restrictor theories, "if" doesn't contribute an operator of its own but instead merely restricts the domain of some co-occurring quantifier. The standard arguments (Lewis 1975, Kratzer 1986) for restrictor theories have it that operator theories (but not restrictor theories) struggle to predict the truth conditions of quantified conditionals like -/- (1) a. If John didn't work at home, he usually worked in his office. b. If John didn't work at (...)
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  10.  20
    Justin Khoo (2013). A Note on Gibbard's Proof. Philosophical Studies 166 (1):153-164.
    A proof by Allan Gibbard (Ifs: Conditionals, beliefs, decision, chance, time. Reidel, Dordrecht, 1981) seems to demonstrate that if indicative conditionals have truth conditions, they cannot be stronger than material implication. Angelika Kratzer's theory that conditionals do not denote two-place operators purports to escape this result [see Kratzer (Chic Linguist Soc 22(2):1–15, 1986, 2012)]. In this note, I raise some trouble for Kratzer’s proposed method of escape and then show that her semantics avoids this consequence of Gibbard’s proof by denying (...)
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  11.  8
    Justin Khoo (2015). On Indicative And Subjunctive Conditionals. Philosophers' Imprint 15 (32).
    At the center of the literature on conditionals lies the division between indicative and subjunctive conditionals, and Ernest Adams’ famous minimal pair: If Oswald didn’t shoot Kennedy, someone else did. If Oswald hadn’t shot Kennedy, someone else would have. While a lot of attention is paid to figuring out what these different kinds of conditionals mean, significantly less attention has been paid to the question of why their grammatical differences give rise to their semantic differences. In this paper, I articulate (...)
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  12.  5
    Justin Khoo (2015). Austere Realism: Contextual Semantics Meets Minimal Ontology, by Terence Horgan and Matjaž Potrč. Mind 124 (496):1292-1299.
    Review of Horgan and Potrc (2008). I discuss both their linguistic and ontological theses.
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  13.  1
    Justin Khoo (2015). Modal Disagreements. Modal Disagreements 58 (5):511-534.
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