Colloquium, 1/20 – Dan Lassiter

Speaker:  Dan Lassiter (Stanford University)
Date & Time: January 27th at 3:30pm
Place:  Education Bldg. rm. 433

Title:  Epistemic language in indicative and counterfactual conditionals

Abstract:  In this talk I’ll report on a series of experiments which examine judgments about epistemic modals, both in unembedded contexts and in indicative and counterfactual conditionals. Building on these results and recent probabilistic theories of epistemic language, I propose a probabilistic version of Kratzer’s restrictor theory of conditionals that identifies the indicative/counterfactual distinction with Pearl’s distinction between conditioning and intervening in probabilistic graphical models. Combining this theory with recent accounts of must, we can also derive a theory of bare conditionals; I describe the predictions and consider their plausibility in light of the experimental data.

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