10 ideas
14626 | In S5 matters of possibility and necessity are non-contingent [Williamson] |
19043 | Bivalence applies not just to sentences, but that general terms are true or false of each object [Quine] |
19042 | Terms learned by ostension tend to be vague, because that must be quick and unrefined [Quine] |
14625 | Necessity is counterfactually implied by its negation; possibility does not counterfactually imply its negation [Williamson] |
14623 | Strict conditionals imply counterfactual conditionals: □(A⊃B)⊃(A□→B) [Williamson] |
14624 | Counterfactual conditionals transmit possibility: (A□→B)⊃(◊A⊃◊B) [Williamson] |
14531 | Rather than define counterfactuals using necessity, maybe necessity is a special case of counterfactuals [Williamson, by Hale/Hoffmann,A] |
14628 | Imagination is important, in evaluating possibility and necessity, via counterfactuals [Williamson] |
6853 | Consequentialism wrongly assumes a clear line between an act and its consequences [Crisp,R] |
6854 | Does the environment have value in itself? [Crisp,R] |