كل إنسان حيوان، ولا شيء من الحيوان بحجر
Every human is an animal, and no animal is a stone.
Conclusion: No human is a stone. The minor places all humans under animal, while the major excludes stones from every animal.
The result is universal negative: stonehood is denied of all humans. The negative quality comes from the major, while the affirmative minor and universal major satisfy the production conditions.