29 ideas
16877 | A 'constructive' (as opposed to 'analytic') definition creates a new sign [Frege] |
11219 | Frege suggested that mathematics should only accept stipulative definitions [Frege, by Gupta] |
16878 | We must be clear about every premise and every law used in a proof [Frege] |
16867 | Logic not only proves things, but also reveals logical relations between them [Frege] |
16863 | Does some mathematical reasoning (such as mathematical induction) not belong to logic? [Frege] |
16862 | The closest subject to logic is mathematics, which does little apart from drawing inferences [Frege] |
16865 | 'Theorems' are both proved, and used in proofs [Frege] |
16866 | Tracing inference backwards closes in on a small set of axioms and postulates [Frege] |
16868 | The essence of mathematics is the kernel of primitive truths on which it rests [Frege] |
16871 | A truth can be an axiom in one system and not in another [Frege] |
16870 | Axioms are truths which cannot be doubted, and for which no proof is needed [Frege] |
16869 | To create order in mathematics we need a full system, guided by patterns of inference [Frege] |
16864 | If principles are provable, they are theorems; if not, they are axioms [Frege] |
9388 | Every concept must have a sharp boundary; we cannot allow an indeterminate third case [Frege] |
17488 | Empiricist theories are sets of laws, which give explanations and reductions [Glennan] |
17493 | Modern mechanism need parts with spatial, temporal and function facts, and diagrams [Glennan] |
17487 | Mechanistic philosophy of science is an alternative to the empiricist law-based tradition [Glennan] |
17489 | Mechanisms are either systems of parts or sequences of activities [Glennan] |
17490 | 17th century mechanists explained everything by the kinetic physical fundamentals [Glennan] |
17491 | Unlike the lawlike approach, mechanistic explanation can allow for exceptions [Glennan] |
16876 | We need definitions to cram retrievable sense into a signed receptacle [Frege] |
16875 | We use signs to mark receptacles for complex senses [Frege] |
16879 | A sign won't gain sense just from being used in sentences with familiar components [Frege] |
16873 | Thoughts are not subjective or psychological, because some thoughts are the same for us all [Frege] |
16872 | A thought is the sense expressed by a sentence, and is what we prove [Frege] |
16874 | The parts of a thought map onto the parts of a sentence [Frege] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
17494 | Since causal events are related by mechanisms, causation can be analysed in that way [Glennan] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |