Preface
**I. Basic Concepts of Logic**

1. Arguments and Validity

2. Propositions

3. Logical Form and Counterexamples

4. Terms

5. Definition

6. Division and Classification

**II. Basic Concepts of Aristotelian Logic**

7. Standard Categorical Propositions

8. The Traditional Square of Opposition

9. Existential Presuppositions of Aristotelian Logic

10. Distribution of Terms in Categorical Propositions

11. Conversion

**III. Immediate Inferences Not Needed for Standard Syllogism**

12. Negative Terms

13. Obversion

14. Contraposition

15. Inversion and Partial Inversion

16. Tables of Immediate Inferences

17. Relations

18. Reversible and Non-Reversible Inferences

**IV. Aristotelian Logic: Mediated Inferences**

19. The Standard Syllogism: Definitions

20. A Deductive System of the Standard Syllogism

21. Rules of the Standard Syllogism

22. Chain Arguments Including Sorites

23. Reducing the Number of Terms in Arguments

24. Singular Propositions

25. Standardizing Categorical Propositions

26. The Enthymeme

27. The Antilogism for N-Pair Arguments

28. The Hypothetical Syllogism

29. The Disjunctive Syllogism

30. The Dilemma

**V. Informal Fallacies**

31. Proof and Fallacies

32. Linguistic Fallacies

33. Contextual Fallacies

34. Illicit Appeals

**VI. Transition to Symbolic Logic**

35. From Aristotelian to Symbolic Logic

Index