 This sensitivity of the proposition expressed by “If \(A, B\)” to what is taken for granted by speaker and hearer, or to the epistemic state of the thinker, is somewhat unnatural. One usually distinguishes between the content of what is said and the different epistemic attitudes one may take to that same content. Someone conjectures that if Ann isn’t home, Bob is. We are entirely agnostic about this. Then we discover that at least one of them is at home (nothing stronger). We now accept the conditional. It seems more natural to say that we now have a different attitude to the same conditional thought, that \(B\) on the supposition that \({\sim}A\). It does not seem that the content of our conditional thought has changed. And if there are conditional propositions, it seems more natural to say that we now take to be true what we were previously wondering about. There does not seem to be independent motivation for thinking the content of the proposition has changed.