This is proved in the same way as II. xx. But the ideas of the modifications of the body are in the human mind (II. xii.), that is, in God, in so far as he constitutes the essence of the human mind;
eta hori demonstratzen da 20. Proposizioan bezala. Gorputzeko afekzioen ideiak, ordea, giza Izpirituaren baitan dira (12. Prop. arab.), erran nahi baita (11. Prop. Korol. arab.)