10 ideas
11074 | 'It is true that this follows' means simply: this follows [Wittgenstein] |
11073 | Two and one making three has the necessity of logical inference [Wittgenstein] |
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] |
22593 | Our sensation of light may not be the same as what produces the sensation [Descartes] |
6894 | Mental terms can be replaced in a sentence by a variable and an existential quantifier [Ramsey] |
16569 | The Hot, Cold, Wet and Dry of the philosophers need themselves to be explained [Descartes] |
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] |
20964 | Descartes said there was conservation of 'quantity of motion' [Descartes, by Papineau] |