15 ideas
18755 | Validity is explained as truth in all models, because that relies on the logical terms [McGee] |
18751 | Natural language includes connectives like 'because' which are not truth-functional [McGee] |
18761 | Second-order variables need to range over more than collections of first-order objects [McGee] |
18753 | An ontologically secure semantics for predicate calculus relies on sets [McGee] |
18754 | Logically valid sentences are analytic truths which are just true because of their logical words [McGee] |
18757 | Soundness theorems are uninformative, because they rely on soundness in their proofs [McGee] |
18760 | The culmination of Euclidean geometry was axioms that made all models isomorphic [McGee] |
18762 | A maxim claims that if we are allowed to assert a sentence, that means it must be true [McGee] |
2848 | Two people might agree in their emotional moral attitude while disagreeing in their judgement [Brink] |
2851 | Emotivists find it hard to analyse assertions of moral principles, rather than actual judgements [Brink] |
2853 | Emotivists claim to explain moral motivation by basing morality on non-cognitive attitudes [Brink] |
2852 | Emotivists tend to favour a redundancy theory of truth, making moral judgement meaningless [Brink] |
2849 | Emotivism implies relativism about moral meanings, but critics say disagreements are about moral reference [Brink] |
2850 | How can emotivists explain someone who recognises morality but is indifferent to it? [Brink] |
6005 | Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley] |