Combining Texts

All the ideas for 'The Concept of Logical Consequence', 'fragments/reports' and 'On Fate ('De fato')'

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8 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

18812

Split out the logical vocabulary, make an assignment to the rest. It's logical if premises and conclusion match [Tarski, by Rumfitt]

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

13344

X follows from sentences K iff every model of K also models X [Tarski]

5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence

21677

How can the not-true fail to be false, or the not-false fail to be true? [Cicero]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13343

A 'model' is a sequence of objects which satisfies a complete set of sentential functions [Tarski]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

3061	Anaxarchus said that he was not even sure that he knew nothing [Anaxarchus, by Diog. Laertius]

19. Language / E. Analyticity / 1. Analytic Propositions

13345

Sentences are 'analytical' if every sequence of objects models them [Tarski]

19. Language / F. Communication / 1. Rhetoric

21667

Oratory and philosophy are closely allied; orators borrow from philosophy, and ornament it [Cicero]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / g. Moral responsibility

21678

If desire is not in our power then neither are choices, so we should not be praised or punished [Cicero]