Syllogism

Syllogism

1. Argument arranged in a specific manner

2. Major premise

   • Contains de Major Term
     • Predicate of the conclusion

3. Minor premise

   • Contains the Minor Term
     • Subject of the conclusion

4. Conclusion

   • Third proposition whose meaning is the premises

5. Middle Term

   • Does not appear in the conclusion

6. Rule #1

   • Only 3 terms (Major, Minor and Middle term)

7. Rule #2

   • Major and Minor terms should only be universal in the conclusion

8. Rule #3

   • The Middle term must be universal al least once

9. Rule #4

   • If premise affirmative, then conclusion affirmative

10. Rule #5

    • If one premise is negative, and the other positive. Conclusion is negative

11. Rule #6

    • Argument invalid when both premises negative

12. Rule #7

    • One premise at least must be universal

13. Rule #8

    • If one premise particular, then conclusion must be particular