I was looking at the wikipedia article on Syllogism where it describes the different types of syllogisms.
I understand the usefulness of syllogism when first introducing logic, and I also understand that it is much older than set theory. But I find all those descriptions much harder to understand than if I simply think in terms of sets. I spent a few minutes trying to understand one of the types (Modus Celarent) only to realize it was obvious if you think about it using sets.
So my question is the same as in the title: is there something in syllogism that is not covered by set theory? Or, more weakly, is it still useful to learn about it once you have the basic intuitions about sets?