Vann McGee's counterexample to modus ponens |
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Authors: | Christian Piller |
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Institution: | (1) Department of Philosophy, Princeton University, 08544 Princeton, NJ, USA |
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Abstract: | Conclusion After rejecting some unjustified criticism of McGee's claim about modus ponens, I argued for two conditionals: If the Adams-Appiah theory of conditionals is correct, then modus ponens is saved from McGee's counterexample. If the Lewis-Jackson theory is correct, the same holds. Furthermore, I raised some doubts whether the antecedents of these conditionals are true. But, if one of them were, then, by modus ponens, modus ponens would be generally valid. |
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