Comments: (1) Why does The Manual of Reason take dyads to be the locus of the inference? This is, in fact, a clever move. Obviously, we cannot take God to be the locus (e.g. God exists, because…), for then the first criterion on a sound inference will not be met—the reason property, whatever it is, cannot be uncontroversially present in a locus whose very existence is controversial. We can’t take the locus to be “everything in the world”, for many such things are not effects (e.g. atoms, space)