10 ideas
| 17896 | We need to know the meaning of 'and', prior to its role in reasoning [Prior,AN, by Belnap] |
| 17898 | Prior's 'tonk' is inconsistent, since it allows the non-conservative inference A |- B [Belnap on Prior,AN] |
| 11021 | Prior rejected accounts of logical connectives by inference pattern, with 'tonk' his absurd example [Prior,AN, by Read] |
| 13836 | Maybe introducing or defining logical connectives by rules of inference leads to absurdity [Prior,AN, by Hacking] |
| 16978 | If conceivability is a priori coherence, that implies possibility [Tahko] |
| 16975 | Essences are used to explain natural kinds, modality, and causal powers [Tahko] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 16976 | Scientific essentialists tend to characterise essence in terms of modality (not vice versa) [Tahko] |
| 16977 | If essence is modal and laws are necessary, essentialist knowledge is found by scientists [Tahko] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |