  Together with many of his contemporaries, Godfrey attempts to identify the principle within material entities that accounts for their being multiplied numerically within species. In discussing this he returns to the distinction he had drawn in Quodlibet VI, q. 16 between the kind of unity which serves as a principle of number and which is based on discrete quantity, and the kind that is convertible with being, transcendental unity. Because the substantial form is the determining principle within a corporeal entity and makes its essence capable of being defined, Godfrey holds that it is by reason of its form that such a substance enjoys transcendental unity.