Combining Texts

Ideas for 'Exigency to Exist in Essences', 'Philosophical Logic: Intro to Advanced Topics' and 'Plural Quantification Exposed'

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5 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]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / n. Axiom of Comprehension

10779

A comprehension axiom is 'predicative' if the formula has no bound second-order variables [Linnebo]