Combining Texts

All the ideas for 'Philosophical Logic: Intro to Advanced Topics', 'Euthydemus' and 'Quaestiones de anima'

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15 ideas

4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic

13913

The four 'perfect syllogisms' are called Barbara, Celarent, Darii and Ferio [Engelbretsen/Sayward]

13914

Syllogistic logic has one rule: what is affirmed/denied of wholes is affirmed/denied of their parts [Engelbretsen/Sayward]

4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic

13915

Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward]

4. Formal Logic / A. Syllogistic Logic / 3. Term Logic

13916

Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward]

5. Theory of Logic / A. Overview of Logic / 4. Pure Logic

13850

In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward]

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

13849

Classical logic rests on truth and models, where constructivist logic rests on defence and refutation [Engelbretsen/Sayward]

5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic

13851

Unlike most other signs, = cannot be eliminated [Engelbretsen/Sayward]

5. Theory of Logic / K. Features of Logics / 5. Incompleteness

13852

Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward]

8. Modes of Existence / D. Universals / 6. Platonic Forms / b. Partaking

304	Beautiful things must be different from beauty itself, but beauty itself must be present in each of them [Plato]

9. Objects / C. Structure of Objects / 2. Hylomorphism / d. Form as unifier

16766

One thing needs a single thing to unite it; if there were two forms, something must unite them [Aquinas]

11. Knowledge Aims / A. Knowledge / 1. Knowledge

16120

Knowing how to achieve immortality is pointless without the knowledge how to use immortality [Plato]

13. Knowledge Criteria / C. External Justification / 3. Reliabilism / a. Reliable knowledge

303	Say how many teeth the other has, then count them. If you are right, we will trust your other claims [Plato]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / d. Ethical theory

302	What knowledge is required to live well? [Plato]

22. Metaethics / C. The Good / 1. Goodness / e. Good as knowledge

301	Only knowledge of some sort is good [Plato]

23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / f. The Mean

305	Something which lies midway between two evils is better than either of them [Plato]