Combining Texts

All the ideas for 'Leibniz: Guide for the Perplexed', 'Intuitionism' and 'The Concept of Logical Consequence'

expand these ideas     |    start again     |     specify just one area for these texts

9 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 / 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]
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
19347 Substance needs independence, unity, and stability (for individuation); also it is a subject, for predicates [Perkins]
19. Language / E. Analyticity / 1. Analytic Propositions
13345 Sentences are 'analytical' if every sequence of objects models them [Tarski]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / c. Ethical intuitionism
7260 If there are intuited moral facts, why should we care about them? [Dancy,J]
7261 Internalists say that moral intuitions are motivating; externalist say a desire is also needed [Dancy,J]
7262 Obviously judging an action as wrong gives us a reason not to do it [Dancy,J]
7265 Moral facts are not perceived facts, but perceived reasons for judgements [Dancy,J]