  It is dangerous to generalize these sorts of “Easy Arguments” to all propositions (particularly singular propositions). But even if they cannot be fully generalized, they threaten to show that propositions would be mind-independent abstract entities. Now, given that propositions de jure are sharable objects of attitudes, it is antecedently unlikely that they should turn out to be, say, token utterances. But one might have thought that propositions could be identified with natural language sentence types (as in Quine 1960), or with sentence types in the language of thought. But if the Easy Arguments succeed, it seems that to accept propositions, we must accept Platonism. Conceptualism about propositions seems ruled out.