P46: The knowledge of God/Nature’s eternal and infinite essence which each idea involves is adequate and perfect.

Dem.: The demonstration of the preceding Proposition is Universal, and whether the thing is considered as a part or as a whole, its idea, whether of the whole or a part (by P45), will involve God/Nature’s eternal and infinite essence. So what gives knowledge of an eternal and infinite essence of God/Nature is common to all, and is equally in the part and in the whole. And so (by P38) this knowledge will be adequate, q.e.d.