The Organon. Aristotle's groundbreaking discovery of logic.

[@jakelm4256]

54:00 Aristotle discusses modal syllogisms at great length and goes through all the combinations of necessary, contingent, and pure propositions in a syllogism. This takes up a good portion of Book I.

[@Stephans_History_of_the_World]

Perhaps I should have looked into it more. I guess this comment by Kneale and Kneale turned me off: "Aristotelian theory of modal syllogisms is generally
recognized to be confused and unsatisfactory, and it has been
conjectured that it is a late and unfinished work"

[@jakelm4256]

53:15 I believe it was actually Galen who is credited with “discovering” the fourth figure, not Theophrastus

[@Stephans_History_of_the_World]

I will look into this

[@Stephans_History_of_the_World]

I think you are right. Kneale and Kneale state that Theophratus added those moods but as belonging to figure one. Later these were categorized as a fourth mood, perhaps by Galen.

[@Stephans_History_of_the_World]

Thanks for the careful watch.

[@jakelm4256]

21:00 what is your justification for proceeding through the Organon out of the traditional order of: Categories, On Interpretation, Prior, Posterior, Topics, Sophistical Refutations?

[@Stephans_History_of_the_World]

Historical chronological order

[@jakelm4256]

19:50 this doesn’t sound right. Aristotle didn’t say universals only exist in our mind. That’s what nominalists believe.

[@Stephans_History_of_the_World]

Can you elaborate what he did believe? I meant as opposed to universals having a separate existence in another plane of existence, as Plato did.

[@jakelm4256]

@@Stephans_History_of_the_World he believed universals are real and exist in matter.

[@Stephans_History_of_the_World]

I looked it up. You're right. I will update it if I redo the video at some point.