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E1P6D2

Demonstration — Part I

Latin

Demonstratur hoc etiam facilius ex absurdo contradictorio. Nam si substantia ab alio posset produci, ejus cognitio a cognitione suæ causæ deberet pendere (per axioma 4) adeoque (per definitionem 3) non esset substantia.

English (Elwes 1883)

(not aligned in this witness)

Modern English

This is also shown more easily by way of contradiction. For if substance could be produced by something else, its knowledge would have to depend on the knowledge of its cause (E1A4), and so (E1D3) it would not be substance.

Depends on (2)

Definitions

Axioms