«والموجبة الكلية تنعكس إلى موجبة جزئية»
A universal affirmative converts to a particular affirmative.
Textbook example:
«كل إنسان حيوان»
Every human is an animal.
Correct converse:
«بعض الحيوان إنسان»
Some animals are humans.
The original places all humans within the class of animals. Given the existing human members, the converse correctly says that some animals are humans, but it does not say all animals are humans.