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Single Idea 11283

[catalogued under 2. Reason / A. Nature of Reason / 1. On Reason]

Full Idea

Aristotle distinguishes between deductive reasoning (sullogismos) and demonstration (apodeixis). All demonstration is deductive reasoning, but not all deductive reasoning is demonstration.

Gist of Idea

There is pure deductive reasoning, and explanatory demonstration reasoning

Source

report of Aristotle (Posterior Analytics [c.327 BCE], Bk I.2) by Vassilis Politis - Aristotle and the Metaphysics 5.3

Book Reference

Politis,Vasilis: 'Aristotle and the Metaphysics' [Routledge 2004], p.130


A Reaction

This sounds not far off the distinction between single-turnstile (formal proof) and double-turnstile (semantic consequence). Politis says, though, that the key point is the demonstration is explanatory.