24 ideas
13913 | The four 'perfect syllogisms' are called Barbara, Celarent, Darii and Ferio [Engelbretsen/Sayward] |
13914 | Syllogistic logic has one rule: what is affirmed/denied of wholes is affirmed/denied of their parts [Engelbretsen/Sayward] |
13915 | Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward] |
13916 | Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward] |
13850 | In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward] |
13849 | Classical logic rests on truth and models, where constructivist logic rests on defence and refutation [Engelbretsen/Sayward] |
13851 | Unlike most other signs, = cannot be eliminated [Engelbretsen/Sayward] |
13852 | Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward] |
3523 | Shadows are supervenient on their objects, but not reducible [Maslin] |
3517 | 'Ontology' means 'study of things which exist' [Maslin] |
3538 | Analogy to other minds is uncheckable, over-confident and chauvinistic [Maslin] |
8329 | Either causal relations are given in experience, or they are unobserved and theoretical [Sosa/Tooley] |
3540 | If we are brains then we never meet each other [Maslin] |
3518 | I'm not the final authority on my understanding of maths [Maslin] |
3530 | Denial of purely mental causation will lead to epiphenomenalism [Maslin] |
3520 | Token-identity removes the explanatory role of the physical [Maslin] |
8324 | The problem is to explain how causal laws and relations connect, and how they link to the world [Sosa/Tooley] |
8328 | Causation isn't energy transfer, because an electron is caused by previous temporal parts [Sosa/Tooley] |
8327 | If direction of causation is just direction of energy transfer, that seems to involve causation [Sosa/Tooley] |
8330 | Are causes sufficient for the event, or necessary, or both? [Sosa/Tooley] |
8325 | The dominant view is that causal laws are prior; a minority say causes can be explained singly [Sosa/Tooley] |
3528 | Causality may require that a law is being followed [Maslin] |
3525 | Strict laws make causation logically necessary [Maslin] |
3527 | Strict laws allow no exceptions and are part of a closed system [Maslin] |