 Take any ethical statement E. Since moral properties are supervenient or consequent upon descriptive properties, no possible world where E is true can be made up only of moral facts. There will also have to be descriptive facts about this world, so there will be a sentence, likely an extremely long and complex sentence, that completely specifies the descriptive facts about the world. There will be such a purely descriptive sentence for every possible world where E is true. Let these sentences be D1, D2, D3, … We can disjoin all these descriptive sentences to get D = (D1 or D2 or D3 or …). D will also be a descriptive sentence; it is made up entirely of descriptive sentences put together using “or”, which is not a moral term.