11 ideas
13768 | Validity can preserve certainty in mathematics, but conditionals about contingents are another matter [Edgington] |
13770 | There are many different conditional mental states, and different conditional speech acts [Edgington] |
13764 | Are conditionals truth-functional - do the truth values of A and B determine the truth value of 'If A, B'? [Edgington] |
13765 | 'If A,B' must entail ¬(A & ¬B); otherwise we could have A true, B false, and If A,B true, invalidating modus ponens [Edgington] |
9216 | Each area of enquiry, and its source, has its own distinctive type of necessity [Fine,K] |
16978 | If conceivability is a priori coherence, that implies possibility [Tahko] |
9214 | Unsupported testimony may still be believable [Fine,K] |
16975 | Essences are used to explain natural kinds, modality, and causal powers [Tahko] |
9215 | Causation is easier to disrupt than logic, so metaphysics is part of nature, not vice versa [Fine,K] |
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] |