21 ideas
| 7548 | Classes, grouped by a convenient property, are logical constructions [Russell] |
| 7545 | Visible things are physical and external, but only exist when viewed [Russell] |
| 10993 | Ramsey's Test: believe the consequent if you believe the antecedent [Ramsey, by Read] |
| 14279 | Asking 'If p, will q?' when p is uncertain, then first add p hypothetically to your knowledge [Ramsey] |
| 19419 | Not all of perception is accompanied by consciousness [Leibniz] |
| 7553 | Sense-data are purely physical [Russell] |
| 7549 | If my body literally lost its mind, the object seen when I see a flash would still exist [Russell] |
| 6894 | Mental terms can be replaced in a sentence by a variable and an existential quantifier [Ramsey] |
| 7546 | A man is a succession of momentary men, bound by continuity and causation [Russell] |
| 19421 | Souls act as if there were no bodies, and bodies act as if there were no souls [Leibniz] |
| 7550 | We could probably, in principle, infer minds from brains, and brains from minds [Russell] |
| 19420 | Death and generation are just transformations of an animal, augmented or diminished [Leibniz] |
| 19416 | Not all of matter is animated, any more than a pond full of living fish is animated [Leibniz] |
| 19422 | Every particle of matter contains organic bodies [Leibniz] |
| 9420 | Causal laws result from the simplest axioms of a complete deductive system [Ramsey] |
| 9418 | All knowledge needs systematizing, and the axioms would be the laws of nature [Ramsey] |
| 7551 | Matter is a logical construction [Russell] |
| 7547 | Matter requires a division into time-corpuscles as well as space-corpuscles [Russell] |
| 7552 | Six dimensions are needed for a particular, three within its own space, and three to locate that space [Russell] |
| 19418 | Mechanics shows that all motion originates in other motion, so there is a Prime Mover [Leibniz] |
| 19417 | All substances are in harmony, even though separate, so they must have one divine cause [Leibniz] |