Note 46 — Chapter VII · ANALYTICA POSTERIORA I.
Reading edition
Analyt. Post. I. xvi. p. 79, b. 23: ἄγνοια κατ’ ἀπόφασιν — ἄγνοια κατὰ διάθεσιν. See Themistius, p. 49, Spengel. In regard to simple and uncombined ideas, ignorance is not possible as an erroneous combination, but only as a mental blank. You either have the idea and thus know so much truth, or you have not the idea and are thus ignorant to that extent; this is the only alternative. Cf. Aristot. Metaph. Θ. p. 1051, a. 34; De Animâ, III. vi. p. 430, a. 26.