This paper considers Rodrigo de Arriaga’s account of the nature of the concept of being, which he construes in terms of univocity in opposition to analogy. I argue that the reason for his preference of univocity follows from his commitment to formal (as opposed to objective) precision. This commitment to formal precision comes at a price, however. Though Arriaga insists on restricting the concept of being to ‘real being’ only, it is not clear how he is able to maintain that (...) restriction in a principled way. Like his contemporary and confrere, Richard Lynch, Arriaga seems to be on a trajectory that will lead to a supertranscendental conception of metaphysical science. (shrink)