17 ideas
10688 | 'Equivocation' is when terms do not mean the same thing in premises and conclusion [Beall/Restall] |
10690 | Formal logic is invariant under permutations, or devoid of content, or gives the norms for thought [Beall/Restall] |
10691 | Logical consequence needs either proofs, or absence of counterexamples [Beall/Restall] |
10695 | Logical consequence is either necessary truth preservation, or preservation based on interpretation [Beall/Restall] |
10689 | A step is a 'material consequence' if we need contents as well as form [Beall/Restall] |
10696 | A 'logical truth' (or 'tautology', or 'theorem') follows from empty premises [Beall/Restall] |
10693 | Models are mathematical structures which interpret the non-logical primitives [Beall/Restall] |
10692 | Hilbert proofs have simple rules and complex axioms, and natural deduction is the opposite [Beall/Restall] |
18555 | The beautiful is that from which nothing can be subtracted and to which nothing can be added [Alberti] |
3282 | The general form of moral reasoning is putting yourself in other people's shoes [Nagel] |
3278 | An egalitarian system must give priority to those with the worst prospects in life [Nagel] |
3275 | Equality was once opposed to aristocracy, but now it opposes public utility and individual rights [Nagel] |
3277 | In judging disputes, should we use one standard, or those of each individual? [Nagel] |
3281 | The ideal of acceptability to each individual underlies the appeal to equality [Nagel] |
3273 | Equality nowadays is seen as political, social, legal and economic [Nagel] |
3274 | Equality can either be defended as good for society, or as good for individual rights [Nagel] |
3276 | A morality of rights is very minimal, leaving a lot of human life without restrictions or duties [Nagel] |