11 ideas
14626 | In S5 matters of possibility and necessity are non-contingent [Williamson] |
18617 | Substances, unlike aggregates, can survive a change of parts [Mumford] |
14625 | Necessity is counterfactually implied by its negation; possibility does not counterfactually imply its negation [Williamson] |
18618 | Maybe possibilities are recombinations of the existing elements of reality [Mumford] |
18619 | Combinatorial possibility has to allow all elements to be combinable, which seems unlikely [Mumford] |
18620 | Combinatorial possibility relies on what actually exists (even over time), but there could be more [Mumford] |
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] |
7903 | The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna] |