Liddell-Scott-Jones

συλλογισμός (sullogismos) assessment ^G:N-M

συλλογισμός-ισμός, ὁ,

computation, calculation, κατὰ τοὺς τῶν πατέρων σ. according to the (military) ratings of their fathers, [Refs 1st c.BC+]; κατὰ τὸν σ. τοῦ κοινοῦ πολέμου ἔχειν τὰ κτήματα shall have the property according to the assessment of.., [Refs 3rd c.BC+]

__2 generally, ratiocination, reasoning, [Refs 5th c.BC+]
__3 plan, scheme, συνελογίσατο.. συλλογισμόςισμὸν Ἰβηρικὸν καὶ βαρβαρικόν [Refs 2nd c.BC+]; οὐ τῇ τύχῃ πιστεύων ἀλλὰ τοῖς σ. [Refs]
__II putting together of observed facts, [Refs 5th c.BC+]: generally, inference, [Refs 1st c.BC+]
__II.2 in the Logic of [Refs 4th c.BC+], a syllogism or deductive argument, defined provisionally as an argument in which, certain things being posited, something different from them necessarily follows, [Refs]; of several kinds, e.g. ὁ ἀποδεικτικὸς σ. [Refs]; ὁ διαλεκτικὸς σ. [Refs]; sometimes opposed to ἐπαγωγή (which see); ὁ ἐξ ἐπαγωγῆς σ. the syllogism which springs out of induction, [Refs]
__III Rhet., inference from written to unwritten law, [Refs 2nd c.AD+]