 Avicenna takes a proposition under condition [1]—later termed, for obvious reasons, the dhâtî—to be the right proposition to use while laying out the system Aristotle should have laid out in the Prior Analytics, and for laying out the central claims of his own metaphysics. Avicenna focussed most of his attention on the dhâtî, and when he looked for the strongest converse of a dhâtî proposition, he ignored wasfî converses. Later logicians approached the issue of wasfî/dhâtî conditions differently, and often found wasfî converses for dhâtî propositions; they had integrated the two readings in a way Avicenna had not.