By Alexander of Aphrodisias
The final 14 chapters of e-book 1 of Aristotle's "Prior Analytics" are desirous about the illustration within the formal language of syllogistic of propositions and arguments expressed in additional or much less daily Greek. In his statement 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 way those disciplines built within the Hellenistic period. He additionally exhibits a extra subtle realizing of those fields than Aristotle himself, whereas ultimate a staunch defender of Aristotle's emphasis on which means in place of Stoics quandary with verbal formula. In his statement at the ultimate bankruptcy of ebook 1 Alexander bargains a radical dialogue of Aristotle's contrast among denying that whatever is, for instance, white and saying that it really is non-white.
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Additional resources for Alexander of Aphrodisias: On Aristotle Prior Analytics 1.32-46 (Ancient Commentators on Aristotle)
Someone might inquire w h y the conclusion that it is possible that M i k k a l o s could perish tomorrow w i l l not be true as a contengency. For the major premiss was t a k e n to be contingent, and, since it is contingent, the conclusion w i l l be contingent. Or perhaps he says that it is false that A is predicated of C as equivalent to T o say i n this case that syllogistically A is predicated of C is false'. F o r even i f i t is true i n some other sense, it is false i n terms of being i n a syllogism; for he is not now speaking i n a precise way about the conclusion but is only indicating to us the difference between a n indeterminate and a u n i v e r s a l premiss by t a k i n g it that, although the proposition saying that cultured M i k k a l o s w i l l perish tomorrow is true, the proposition saying that every cultured M i k k a l o s w i l l perish tomorrow is not always true; for the words 'It is not 39 35 352,1 5 10 15 20 Translation universally true that cultured M i k k a l o s w i l l perish tomorrow' mean I t is not true that every cultured M i k k a l o s w i l l perish tomorrow'.
F o r it is not the case that i f a syllogism proves something by necessity thereby also where some t h i n g is proved to follow by necessity from what is assumed, this is a syllogism, since necessity is more inclusive t h a n syllogism. Accord ingly, it is not the case that i f it follows by necessity from the assumption that A is equal to B and C to B that A is also equal to C, that this is thereby a syllogism. There w i l l be a syllogistic inference i f we assume i n addition a u n i v e r s a l premiss w h i c h says that things equal to the same t h i n g are also equal to each other a n d we draw together what were t a k e n as two premisses into one premiss equiva lent to the two.
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. F o r ' H e a l t h of no sickness' is true because it says that no sickness is health (this is what it means); but ' H e a l t h of every h u m a n being' is true not because it says that every h u m a n being is health, but because it says that every h u m a n being is healthy.
Alexander of Aphrodisias: On Aristotle Prior Analytics 1.32-46 (Ancient Commentators on Aristotle) by Alexander of Aphrodisias