E2D4
Definition 4 — Part II
Latin
Per ideam adæquatam intelligo ideam quæ quatenus in se sine relatione ad objectum consideratur, omnes veræ ideæ proprietates sive denominationes intrinsecas habet.
Explicatio: Dico intrinsecas ut illam secludam quæ extrinseca est nempe convenientiam ideæ cum suo ideato.
English (Elwes 1883)
By an adequate idea, I mean an idea which, in so far as it is considered in itself, without relation to the object, has all the properties or intrinsic marks of a true idea.
Explanation: I say intrinsic, in order to exclude that mark which is extrinsic, namely, the agreement between the idea and its object (ideatum).
Modern English
By adequate idea I understand an idea that, considered in itself without relation to its object, has all the properties or intrinsic marks of a true idea.
Explanation: I say intrinsic in order to exclude the extrinsic mark, namely, the agreement of the idea with what it is an idea of.