Authors/Ockham/Summa Logicae/Book II

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Summa Logicae Part II. On propositions: a comprehensive account of the truth conditions of propositions, starting with simple 'categorial' propositions, including past and future tense propositions, moving to complex propositions of various kinds, then modal and other kinds of propositions.

Contents

Universal, Particular and Singular propositions

  • Chapter 1 On the Classification of Propositions in General.
  • Chapter 2 What is Required for the Truth of a Singular Non-Modal Proposition.
  • Chapter 3 What is Required for the Truth of an Indefinite Proposition and of a Particular Proposition.
  • Chapter 4 On Universal Propositions.
  • Chapter 5 On Universal Propositions in which the Sign Distributes over Two Things Only.
  • Chapter 6 On Universal Propositions in which the Sign Distributes over Integral Parts, e.g. the Sign 'Whole'.

Chapters 7-10 - Past, future and modal propositions

  • Chapter 7 On propositions in the past and future tense.
  • Chapter 8 How to Find Out when a Proposition, One of Whose Extremes is in an Oblique Case, is True or False.
  • Chapter 9 What is Required for the Truth of Modal Propositions.
  • Chapter 10 On Modal Propositions without a Dictum

Chapters 11-20 - On exponible propositions

  • Chapter 11 On Propositions which, though Categorical in Form, are Equivalent to Hypotheticals.
  • Chapter 12 On propositions in which there occur negative, privative and infinite terms.
  • Chapter 13 On Affirmative Propositions in which There Occur Privative Terms which are not Equivalent to Infinite Terms.
  • Chapter 14 On propositions in which occur figments to which nothing corresponds in reality.
  • Chapter 15 On Categorical Propositions which Contain the Pronoun 'Who'.
  • Chapter 16 On Reduplicative Propositions.
  • Chapter 17 On Exclusive Propositions.
  • Chapter 18 On Exceptive Propositions.
  • Chapter 19 On Propositions in which the Verbs 'Begin' and 'Cease' Occur.
  • Chapter 20 On Propositions in which the Verb 'Become' Occurs.

Chapters 21-29 - On the conversion of propositions

  • Chapter 21 On the Conversion of Non-Modal Present-Tense Propositions.
  • Chapter 22 On the Conversion of Past-Tense and Future-Tense Non-Modal Propositions Conversion of Past- and Future-Tense Propositions.
  • Chapter 23 On the Conversion of Propositions which are not Simply Categorical, e.g. Exclusives, Reduplicatives, Exceptives, etc.
  • Chapter 24 On the Conversion of de necessario Propositions
  • Chapter 25 On the Conversion of de possibili Propositions.
  • Chapter 26 On the Conversion of de impossibili Propositions.
  • Chapter 27 On the Conversion of de contingenti Propositions
  • Chapter 28 On the Conversion of de contingenti Propositions through Opposite Qualities.
  • Chapter 29 On the Conversion of Modal Propositions which are not Conceded by Everyone to be Modal.

Chapters 30-37 - On hypothetical, conditional, conjunctive and other propositions

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