A more plausible attempt to reduce all relations to qualities proceeds on the following lines. Relations, it is said, are of subjective manufacture, but they are, for all that, not mere fictions. For every relation between two terms, say A and B, is based upon the presence in A and B of certain qualities, which are called the _fundamenta relationis_ or basis of the relation. These qualities may be the same in both the terms, in which case the relation is called symmetrical; such a case is that, _e.g._, of the equality of A and B, a relation having for its _fundamentum_ the fact that A and B have both the same magnitude. Here the real fact is taken to be that A has this magnitude, and again that B has it. The subjective addition to the facts is thought to come in in the voluntary comparison of A and B in respect of this property and the consequent assertion of their equality. Or the qualities which are the foundation of the relation may be different in each of the terms, in which case the relation is technically called asymmetrical. Examples of such asymmetrical relations are, _e.g._, A greater than B, B less than A, or again, A father to B, B son to A. Here the actual facts would be taken to be A possessed of magnitude _x_, B of magnitude _x_-_y_, A qualified by the circumstance of begetting B, B by the circumstance of being begotten by A. The subjective addition would come in, as before, when we brought A and B under one joint of view by comparing them in respect of these properties.