II. of first principles, indemonstrable, Pl.Def.415b, Arist.APr.53b2, 57b33, al.; ἀ. συλλογισμοί, of syllogisms, Chrysipp.Stoic.2.79, al. Adv. “-τως” S.E.P.1.173, Gal.17(2).160.
2. incapable of proof, Plu.Cor. 20.
III. Act., furnishing no proof, PPar.15.3.62, cf. Stoic.2.90.