 The state of affairs Marilyn Monroe’s being an actress and the state of affairs Norma Jean Baker’s being an actress, contain, in some sense, the same objects and properties as constituents in the same order. They are the same state of affairs under different names. However, I can believe that Marilyn Monroe is an actress while doubting that Norma Jean Baker is an actress. Hence, if there are states of affairs, they are not the content of propositional attitudes like belief; thoughts are. This point leaves open the possibility that a state of affairs is a set of thoughts that are equivalent in some respect (see  section 2.2).