# Logic (Sigwart)

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## Volume I.

THE JUDGMENT, CONCEPT, AND INFERENCE
* Author's Preface to the English Translation
* Author's Preface to First German Edition
* Author's Preface to Second German Edition
* Introduction
       § 1. The Problem of Logic
       § 2. Limits to the Problem
       § 3. The Postulate of Logic
       § 4. The Divisions of Logic
* Part I. Analytical. The Nature of Judgment and its Presuppositions
       § 5. The Proposition as the Expression of the Judgment. Subject and Predicate
* Chapter I. Ideas as Elements of Judgments and their Relation to Words
       § 6. The Highest Categories of the Objects of Thought
       § 7. The General Idea and the Word
       § 8. Necessity of the Word as Predicate
* Chapter II. Simple Judgments
    I. Narrative Judgments
       § 9. Denominative Judgments
       § 10. Judgments of Attributes and Activities
       § 11. Impersonal Judgments and Allied Forms
       § 12. Relational Judgments. Existential Propositions
       § 13. Judgments about Abstract Nouns
       § 14. The Objective Validity of the Judgment, and the Principle of Identity
       § 15. The Reference to Time in Narrative Judgments
    II. § 16. Explicative Judgments
    III. § 17. The Act of Judgment as expressed in Language
* Chapter III. How Judgments arise, and the Distinction between Analytical and Synthetical Judgments
       § 18. Immediate and Mediated, Analytical and Synthetical Judgments
       § 19. The Process of the Synthetical Judgment
* Chapter IV. The Negation
       § 20. The Negation as Denial of the Judgment
       § 21. The Different Kinds of Negative Judgments
       § 22. Privation and Opposition as Ground of the Negation
       § 23. The Principle of Contradiction
       § 24. The Principle of Twofold Negation
       § 25. The Principle of the Excluded Middle
* Chapter V. Plural Judgments
    I. Positive Plural Judgments
       § 26. Positive Copulative and Plural Judgments
       § 27. The Universal Affirmative Judgment
       § 28. The Particular Affirmative Judgment
    II. § 29. Negative Plural Judgments
    III. § 30. The Negation of Plural Judgments
* Chapter VI. Possibility and Necessity
    I. § 31. The so-called Modal Distinctions
       § 32. The Law of Sufficient Reason
    II. Possible and Necessary as Predicates of Actual Judgments
       § 33. The Necessity of Reality
       § 34. Possibility
* Chapter VII. Hypothetical and Disjunctive Judgments
    I. § 35. The Different Ways in which Propositions may be Combined, and their Logical Significance
    II. § 36. The Hypothetical Judgment
    III. § 37. The Disjunctive Judgment
Results § 38.
* Part II. Regulative
       § 39. The Conditions of Perfect Judgments
* Chapter I. The Concept
       § 40. Nature of the Logical Concept
       § 41. Analysis of the Concept into Simple Elements
       § 42. Super- and Subordination, Content and Extension of Concepts
       § 43. Division of Concepts
       § 44. Definition
* Chapter II. The Truth of Immediate Judgments
       § 45. The Truth of Judgments about Concepts
       § 46. The Truth of Statements about Ourselves
       § 47. The Truth of Judgments of Perception
       § 48. Axioms and Postulates
* Chapter III. The Rules of Inference as the Ground for Mediated Judgments
       § 49. The Hypothetical Syllogism
       § 50. The Introduction of a Subject in the Hypothetical Syllogism
       § 51. The Different Sources of Hypothetical Major Premises
       § 52. Inferences according to Formal Logical Laws
       § 53. Inferences from Relations between Concepts
       § 54. The meaning of the Aristotelian Figures and Moods
       § 55. The Value of the Syllogism
       § 56. The Inference of Subsumption
       § 57. The Inference from Divisive Judgments
       § 58. The Disjunctive Syllogism
       § 59. The Relation between the Truth of the Conclusion and the Truth of the Premises
* Appendix A
* Appendix B
* Appendix C

## Volume II.

LOGICAL METHODS

## Notes

* (Logic,Christoph von Sigwart)https://books.google.co.kr/books/about/Logic.html?id=-74vtQEACAAJ&source=kp_cover&redir_esc=y
* (Logic,Christoph von Sigwart - Vol.1)https://books.google.co.kr/books?id=9i8jM1_lE7YC&hl=ko&source=gbs_book_other_versions
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