17 ideas
21852 | Nomads are the basis of history, and yet almost unknowable [Deleuze] |
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] |
12066 | Aristotelian and Kripkean essentialism are very different theories [Witt] |
12067 | An Aristotelian essence is a nonlinguistic correlate of the definition [Witt] |
12082 | If unity is a matter of degree, then essence may also be a matter of degree [Witt] |
12089 | Essences mainly explain the existence of unified substance [Witt] |
12102 | Essential properties of origin are too radically individual for an Aristotelian essence [Witt] |
21853 | We are currently extending capitalism to the whole of society [Deleuze] |
21851 | The State requires self-preservation, but the war-machine desires destruction [Deleuze] |
12085 | Reality is directional [Witt] |