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Full Idea
Weak supervenience says there is no possible world that contains individuals that are B-indiscernible but A-discernible. Strong supervenience entails the same even if they are in different possible worlds.
Gist of Idea
Weak supervenience is in one world, strong supervenience in all possible worlds
Source
Karen Bennett (Supervenience [2011], §4.1)
Book Ref
'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.14
A Reaction
In other words (I presume), in simple language, the weak version says they happen supervene, the strong version says they have to supervene.
3841 | Users of 'supervenience' blur its causal and constitutive meanings [Searle] |
2315 | Mereological supervenience says wholes are fixed by parts [Kim] |
3991 | Where pixels make up a picture, supervenience is reduction [Lewis] |
16052 | 'Superdupervenience' is supervenience that has a robustly materialistic explanation [Horgan,T] |
16053 | 'Global' supervenience is facts tracking varying physical facts in every possible world [Horgan,T] |
2393 | Logical supervenience is when one set of properties must be accompanied by another set [Chalmers] |
2394 | Natural supervenience is when one set of properties is always accompanied by another set [Chalmers] |
11055 | Supervenience can add covariation, upward dependence, and nomological connection [Hanna] |
16047 | Weak supervenience is in one world, strong supervenience in all possible worlds [Bennett,K] |