8 ideas
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
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] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
6894 | Mental terms can be replaced in a sentence by a variable and an existential quantifier [Ramsey] |
7765 | The use of a sentence is its commitments and entitlements [Brandom, by Lycan] |
9418 | All knowledge needs systematizing, and the axioms would be the laws of nature [Ramsey] |
9420 | Causal laws result from the simplest axioms of a complete deductive system [Ramsey] |