Combining Texts

Ideas for 'fragments/reports', 'On the Plurality of Worlds' and 'works'

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4 ideas

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

10048

There is no clear boundary between the logical and the non-logical [Tarski]

5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=

10694

Logical consequence is when in any model in which the premises are true, the conclusion is true [Tarski, by Beall/Restall]

10479

Logical consequence: true premises give true conclusions under all interpretations [Tarski, by Hodges,W]

5. Theory of Logic / G. Quantification / 6. Plural Quantification

15731

Quantification sometimes commits to 'sets', but sometimes just to pluralities (or 'classes') [Lewis]