Ideas of Allan Gibbard, by Theme
[American, b.1942, At the University of Michigan.]
green numbers give full details |
back to list of philosophers |
expand these ideas
9. Objects / B. Unity of Objects / 3. Unity Problems / c. Statue and clay
14064
|
If a statue is identical with the clay of which it is made, that identity is contingent
|
14066
|
A 'piece' of clay begins when its parts stick together, separately from other clay
|
14067
|
Clay and statue are two objects, which can be named and reasoned about
|
14069
|
We can only investigate the identity once we have designated it as 'statue' or as 'clay'
|
9. Objects / D. Essence of Objects / 7. Essence and Necessity / a. Essence as necessary properties
14076
|
Essentialism is the existence of a definite answer as to whether an entity fulfils a condition
|
9. Objects / D. Essence of Objects / 15. Against Essentialism
14077
|
Essentialism for concreta is false, since they can come apart under two concepts
|
9. Objects / E. Objects over Time / 12. Origin as Essential
14070
|
A particular statue has sortal persistence conditions, so its origin defines it
|
9. Objects / F. Identity among Objects / 6. Identity between Objects
14073
|
Claims on contingent identity seem to violate Leibniz's Law
|
9. Objects / F. Identity among Objects / 8. Leibniz's Law
14065
|
Two identical things must share properties - including creation and destruction times
|
14074
|
Leibniz's Law isn't just about substitutivity, because it must involve properties and relations
|
10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
14072
|
Possible worlds identity needs a sortal
|
14078
|
Only concepts, not individuals, can be the same across possible worlds
|
10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation
14079
|
Kripke's semantics needs lots of intuitions about which properties are essential
|
19. Language / B. Reference / 3. Direct Reference / b. Causal reference
14071
|
Naming a thing in the actual world also invokes some persistence criteria
|