Note 27 — Chapter IX · TOPICA. I.
Reading edition
Ibid. xi. p. 105, a. 7: οὐδὲ δὴ ὧν σύνεγγυς ἡ ἀπόδειξις, οὔδ’ ὧν λίαν πόῤῥω· τὰ μὲν γὰρ οὐκ ἔχει ἀπορίαν, τὰ δὲ πλείον ἢ κατὰ γυμναστικήν. The loose use of the word ἀπόδειξις deserves note here: it is the technical term of the Analyt. Post., denoting that application of the syllogism which contrasts with Dialectic altogether.
Aristotle here means only that problems falling within these limits are the best for dialectic discussion; but, in his suggestions later on, he includes problems for discussion involving the utmost generalities of philosophy. For example, he often adverts to dialectic debate on the Platonic Ideas or Forms (Topic. II. vii. p. 113, a. 25; V. vii. p. 137, b. 7; VI. vi. p. 143, b. 24. Compare also I. xi. p. 104, b. 14.)