2p39d.md (948B)
1 If A be that, which is common to and a property of the 2 human body and external bodies, and equally present in the human 3 body and in the said external bodies, in each part of each 4 external body and in the whole, there will be an adequate idea of 5 A in God (II. vii. Coroll.), both in so far as he has the idea of 6 the human body, and in so far as he has the ideas of the given 7 external bodies. Let it now be granted, that the human body is 8 affected by an external body through that, which it has in common 9 therewith, namely, A; the idea of this modification will involve 10 the property A (II. xvi.), and therefore (II. vii. Coroll.) the 11 idea of this modification, in so far as it involves the property 12 A, will be adequate in God, in so far as God is affected by the 13 idea of the human body; that is (II. xiii.), in so far as he 14 constitutes the nature of the human mind; therefore (II. xi. 15 Coroll.) this idea is also adequate in the human mind. Q.E.D. 16 17