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Inverse View
It is not the case that The descriptive view is refuted if there are metaphysically possible instances of kind C that do not possess the property complex D.
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Reasons For
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Reason for
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1.
If D is constitutive of the meaning of 'C', then the statement 'All C are D' (K) should be analytic and therefore necessary.
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2.
If (K) is necessary, then no metaphysically possible instance of C can lack D.
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3.
There exist metaphysically possible instances of kind C that do not possess the property complex D.
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Reasons Against
2 perspectives
Reason against 1 of 2
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1.
Kripke's modal argument shows that terms like 'water' rigidly designate their referents across possible worlds, independent of any associated description.
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2.
A rigid designator picks out the same entity in all possible worlds, so 'water' refers to H2O even in worlds where H2O lacks properties we associate with water.
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3.
Therefore, a possible world containing XYZ with all water's surface properties but lacking H2O structure contains no water, refuting D-based descriptivism.
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Reason against 2 of 2
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1.
Putnam's Twin Earth argument demonstrates that natural kind terms have their extensions fixed by the actual constitution of paradigm samples, not by speakers' descriptive knowledge.
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2.
Since extension is fixed by causal-historical baptism of samples rather than descriptions, possible instances sharing all of D but lacking actual microstructure fall outside the kind's extension.
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