Rini, Adriane. Aristotle’s Logic
, A. Malpass and M. Antonutti Marfori, editors. The History of Philosophical and Formal Logic: From Aristotle to Tarski. Bloomsbury, London, 2017
Added by: Clotilde Torregrossa, Contributed by: Benedict Eastaugh
Abstract:
Aristotle is generally credited with the invention of logic. More than two thousand years ago, he noticed that good, persuasive arguments have certain kinds of shapes, or structures. Logic was born when he began to study those structures, which he called syllogisms, identifying underlying patterns of ordinary human reasoning and then devising simple methods which can be used to determine whether someone is reasoning correctly. Aristotle was aware that this was a momentous discovery, and he himself thought that all scientific reasoning could be reduced to syllogistic arguments. There are hints that Aristotle saw his syllogistic logic as providing useful practice for participants in ancient debating contests, contests which he himself would have encountered as a student in Plato’s Academy. There are also hints that Aristotle might have envisioned his syllogistic logic as providing a way to catalogue facts about science. But Aristotle never fleshes out any such details. His Prior Analytics, the text in which he presents his syllogistic, focuses on the mechanics of the syllogistic far more than on its interpretation, and in fact the comparative lack of interpretive detail has sometimes led scholars to suppose that what we have today of Aristotle’s logic is his own sometimes scrappy lecture notes or his students’ notes, and not a polished, finished work. But in the end these are of course only guesses. In modern times, the main scholarly interest in Aristotle’s ancient logic has focused increasingly on the proper interpretation of the mechanical methods which Aristotle invented and on their relation to his wider philosophy.
Aristotle is generally credited with the invention of logic. More than two thousand years ago, he noticed that good, persuasive arguments have certain kinds of shapes, or structures. Logic was born when he began to study those structures, which he called syllogisms, identifying underlying patterns of ordinary human reasoning and then devising simple methods which can be used to determine whether someone is reasoning correctly. Aristotle was aware that this was a momentous discovery, and he himself thought that all scientific reasoning could be reduced to syllogistic arguments. There are hints that Aristotle saw his syllogistic logic as providing useful practice for participants in ancient debating contests, contests which he himself would have encountered as a student in Plato’s Academy. There are also hints that Aristotle might have envisioned his syllogistic logic as providing a way to catalogue facts about science. But Aristotle never fleshes out any such details. His Prior Analytics, the text in which he presents his syllogistic, focuses on the mechanics of the syllogistic far more than on its interpretation, and in fact the comparative lack of interpretive detail has sometimes led scholars to suppose that what we have today of Aristotle’s logic is his own sometimes scrappy lecture notes or his students’ notes, and not a polished, finished work. But in the end these are of course only guesses. In modern times, the main scholarly interest in Aristotle’s ancient logic has focused increasingly on the proper interpretation of the mechanical methods which Aristotle invented and on their relation to his wider philosophy.
Comment: This chapter can be used as a first introduction to Aristotle's logic. It could be set in a course on history of logic, for example by pointing to the limits of Aristotle's system in order to set up later developments (e.g. Frege). It could also be used in an introductory logic course, with students set exercises such as working out whether syllogisms represent valid derivations in classical first-order logic.