συλλογ-ισμός · syllog-ismos — LSJ
computation, calculation, κατὰ τοὺς τῶν πατέρων σ. according to the (military) ratings of their fathers, D.S. 17.94; κατὰ τὸν σ. τοῦ κοινοῦ πολέμου ἔχειν τὰ κτήματα shall have the property according to the assessment of . . , SIG 364.38 (Ephesus, iii B.C.).
generally, ratiocination, reasoning, Hp. Decent. 11, Pl. Tht. 186d, Arist. PA 656a27, etc.
plan, scheme, συνελογίσατο . . συλλογισμὸν Ἰβηρικὸν καὶ βαρβαρικόν Plb. 3.98.3; οὐ τῇ τύχῃ πιστεύων ἀλλὰ τοῖς σ. Id. 10.7.3.
putting together of observed facts, Pl. Cra. 412a; σ. ἐστιν ὅτι τοῦτο ἐκεῖνο Arist. Rh. 1371b9: generally, inference, Phld. Sign. 14, al.
in the Logic of Arist., a syllogism or deductive argument, defined provisionally as an argument in which, certain things being posited, something different from them necessarily follows, APr. 24b18, cf. 47a34, al.; of several kinds, e.g. ὁ ἀποδεικτικὸς σ. APo. 74b11; ὁ διαλεκτικὸς σ. Top. 100a22; ἐριστικὸς σ. ib. b24; sts. opposed to ἐπαγωγή (q.v.); ὁ ἐξ ἐπαγωγῆς σ. the syllogism which springs out of induction, APr. 68b15; τὸ ἐνθύμημα σ. τις Rh. 1355a8.
Rhet., inference from written to unwritten law, Hermog. Stat. 2, al. (cf. Syrian. in Hermog. 2.198 R., al.): pl., ib. 11.