Preface to the first edition
Preface to the second edition
Mathematical prolegomenon
Part I. Propositional Logic: 1. Classical logic and the material conditional
2. Basic modal logic
3. Normal modal logics
4. Non-normal modal logics
strict conditionals
5. Conditional logics
6. Intuitionist logic
7. Many-valued logics
8. First degree entailment
9. Logics with gaps, gluts, and worlds
10. Relevant logics
11. Fuzzy logics
11a. Appendix: many valued modal logics
Postscript: an historical perspective on conditionals
Part II. Qualification and Identity: 12. Classical logic
13. Free logic
14. Constant domain modal logics
15. Variable domain modal logics
16. Necessary identity in modal logic
17. Contingent identity in modal logic
18. Non-normal modal logics
19. Conditional logics
20. Intuitionist logic
21. Many-valued logics
22. First degree entailment
23. Logics with gaps, gluts, and worlds
24. Relevant logics
25. Fuzzy logics
Postscript: a methodological coda.