By Alexander of Aphrodisias

The final 14 chapters of publication 1 of Aristotle's "Prior Analytics" are excited by the illustration within the formal language of syllogistic of propositions and arguments expressed in additional or much less daily Greek. In his observation on these chapters, "Alexander of Aphrodisias" explains a few of Aristotle's extra opaque assertions and discusses post-Aristotelian rules in semantics and the philosophy of language. In doing so he presents an strange perception into the best way those disciplines constructed within the Hellenistic period. He additionally exhibits a extra subtle figuring out of those fields than Aristotle himself, whereas last a staunch defender of Aristotle's emphasis on which means instead of Stoics challenge with verbal formula. In his remark at the ultimate bankruptcy of booklet 1 Alexander deals a radical dialogue of Aristotle's contrast among denying that anything is, for instance, white and saying that it's non-white.

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Additional info for Alexander of Aphrodisias: On Aristotle Prior Analytics 1.32-46 (Ancient Commentators on Aristotle)

Example text

He shows i n the case of the second figure that because of a s i m i l a r setting out of terms the apparent conclusion is false w h e n the pre­ misses are t a k e n as true. F o r i f we assume that h e a l t h holds of no sickness by necessity a n d holds of every h u m a n being, it would be thought to follow that by necessity sickness holds of no h u m a n being. B u t this is false since a h u m a n being is subject to sickness just as it is subject to health. However, the statements ' H e a l t h of no sickness' a n d ' H e a l t h of every h u m a n being' are not true i n the same way.

T h i s example is the same as the previous one, since it is not u n i v e r s a l l y true that cultured M i k k a l o s w i l l perish tomor­ row; but i f this is not assumed, there is not a syllogism. (47b38) So this mistake concerns a s m a l l point. W e assent as if there was no difference between saying this holds of that and saying this holds of a l l that]. 35 350,10 20 H a v i n g shown how one should make the analysis of syllogisms, he now describes what things should be guarded against because they can lead us astray into t h i n k i n g that non-syllogisms are syllogisms.

F o r the person who possesses the method of analysis and has the knowledge w i l l be able to reduce a l l , even those w h i c h are not yet k n o w n ; but the person who knows only certain arguments w h i c h have been reduced, could reduce only these, since he has a n experience of these from w h i c h explanation is m i s s i n g but not knowledge. Theophrastus also describes this same method i n the work entitled ' O n the A n a l y s i s of Syllogisms'. H e says that this subject w h i c h s t i l l remains is the m a i n part of the treatment of syllogisms.

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