18 ideas
22358 | Scientific objectivity lies in inter-subjective testing [Popper] |
13338 | '"It is snowing" is true if and only if it is snowing' is a partial definition of the concept of truth [Tarski] |
13337 | A language: primitive terms, then definition rules, then sentences, then axioms, and finally inference rules [Tarski] |
13335 | Semantics is the concepts of connections of language to reality, such as denotation, definition and truth [Tarski] |
13336 | A language containing its own semantics is inconsistent - but we can use a second language [Tarski] |
13339 | A sentence is satisfied when we can assert the sentence when the variables are assigned [Tarski] |
13340 | Satisfaction is the easiest semantical concept to define, and the others will reduce to it [Tarski] |
13341 | Using the definition of truth, we can prove theories consistent within sound logics [Tarski] |
22188 | Give Nobel Prizes for really good refutations? [Gorham on Popper] |
7780 | Falsification is the criterion of demarcation between science and non-science [Popper, by Magee] |
16830 | We don't only reject hypotheses because we have falsified them [Lipton on Popper] |
6794 | If falsification requires logical inconsistency, then probabilistic statements can't be falsified [Bird on Popper] |
6795 | When Popper gets in difficulties, he quietly uses induction to help out [Bird on Popper] |
3856 | Good theories have empirical content, explain a lot, and are not falsified [Popper, by Newton-Smith] |
7779 | There is no such thing as induction [Popper, by Magee] |
3860 | Science cannot be shown to be rational if induction is rejected [Newton-Smith on Popper] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |