 For Maimon, the formal nature of space and time suffices to yield mathematical and geometric necessity. In mathematics, Maimon claims, space and time are given a priori to the faculty of cognition; the objects of mathematics are “nothing but space and time in all their possible modifications.” (GW V, 184 | VnL 126) Mathematics, that is, relates to an object given a priori, or rather “itself determines these objects a priori.” (GW V, 183 | VnL 125) The objects of mathematics and geometry are then directly constructed or determined according to the understanding’s a priori rules of production. For Maimon, as for Kant, the ground of the a priority and necessity of geometry and arithmetic lies in the need for the construction and exhibition of concepts.