In this paper I will propose that the unpalatable consequences of narrow-scope principles are not avoided by altering the scope of the principle but by changing the kind of conditional. I argue that a counterfactual conditional should do the trick and that the rational requirement of modus ponens can be understood as something like a “Ramsey test” on this conditional.
Keywords
Coherence, counterfactual conditionals, modus ponies, Ramsey test, rationality, wide and narrow scope conditionals