العالم متغير، وكل متغير حادث.
The world is changing, and everything changing is originated.
Minor premise: The world is changing.
Major premise: Every changing thing is originated.
Conclusion: The world is originated.
The world is the minor term, originated the major term, and changing the middle term. This is the book's illustrative inference. The present lesson analyzes its syllogistic structure, rather than independently defending its philosophical premises.