Note 22 — Chapter XI · PHYSICA AND METAPHYSICA.
Reading edition
Aristot. Metaph. Γ. iv. p. 1006, a. 11: ἔστι δ’ ἀποδεῖξαι ἐλεγκτικῶς καὶ περὶ τούτου ὅτι ἀδύνατον, ἂν μόνον τι λέγῃ ὁ ἀμφισβητῶν. — K. v. p. 1062, a. 2: καὶ περὶ τῶν τοιούτων ἁπλῶς μὲν οὐκ ἔστιν ἀπόδειξις, πρὸς τόνδε δ’ ἔστιν. — p. 1062, a. 30.