The terminology of Aristotle in the Analytica is to a certain extent different from that in the treatise De Interpretatione. The Enunciation ([Greek: A)po/phanis]) appears under the new name of [Greek: Pro/tasis], _Proposition_ (in the literal sense) or _Premiss_; while, instead of Noun and Verb, we have the word _Term_ ([Greek: O(/ros]), applied alike both to Subject and to Predicate.[3] We pass now from the region of _declared_ truth, into that of _inferential_ or _reasoned_ truth. We find the proposition looked at, not merely as communicating truth in itself, but as generating and helping to guarantee certain ulterior propositions, which communicate something additional or different. The primary purpose of the Analytica is announced to be, to treat of Demonstration and demonstrative Science; but the secondary purpose, running parallel with it and serving as illustrative counterpart, is, to treat also of Dialectic; both of them[4] being applications of the inferential or ratiocinative process, the theory of which Aristotle intends to unfold. [Footnote 3: Aristot. Analyt. Prior. I. i. p. 24, b. 16: [Greek: o(/ron de\ kalô= ei)s o(\n dialu/etai ê( pro/tasis, oi(=on to/ te katêgorou/menon kai\ to\ kath' ou(= katêgorei=tai], &c. [Greek: O(/ros]--_Terminus_--seems to have been a technical word first employed by Aristotle himself to designate subject and predicate as the _extremes_ of a proposition, which latter he conceives as the _interval_ between the _termini_--[Greek: _dia/stêma_]. (Analyt. Prior. I. xv. p. 35, a. 12. [Greek: sterêtikô=n diastêma/tôn], &c. See Alexander, Schol. pp. 145-146.) In the Topica Aristotle employs [Greek: o(/ros] in a very different sense--[Greek: lo/gos o( to\ ti/ ê)=n ei)=nai sêmai/nôn] (Topic. I. v. p. 101, b. 39)--hardly distinguished from [Greek: o(rismo/s]. The Scholia take little notice of this remarkable variation of meaning, as between two treatises of the Organon so intimately connected (pp. 256-257, Br.).] [Footnote 4: Analyt. Prior. I. i. p. 24, a. 25.] The three treatises--1, Analytica Priora, 2, Analytica Posteriora, 3, Topica with Sophistici Elenchi--thus belong all to one general scheme; to the theory of the Syllogism, with its distinct applications, first, to demonstrative or didactic science, and, next, to dialectical debate. The scheme is plainly announced at the commencement of the Analytica Priora; which treatise discusses the Syllogism generally, while the Analytica Posteriora deals with Demonstration, and the Topica with Dialectic. The first chapter of the Analytica Priora and the last chapter of the Sophistici Elenchi (closing the Topica), form a preface and a conclusion to the whole. The exposition of the Syllogism, Aristotle distinctly announces, precedes that of Demonstration (and for the same reason also precedes that of Dialectic), because it is more general: every demonstration is a sort of syllogism, but every syllogism is not a demonstration.[5]