There is no Really Rigid Designation

@article{Kielkopf1977ThereIN,
  title={There is no Really Rigid Designation},
  author={C. Kielkopf},
  journal={No{\^u}s},
  year={1977},
  volume={11},
  pages={409}
}
On p. 71 of his The Nature of Necessity ([6]), A. Plantinga presents a reductio argument for an extremely plausible thesis which we label 'The Necessary Identity of Identicals' or NII. A reconstruction of the argument reveals use of the inference: Ifx andy are co-referential in a possible world, thenx andy are coreferential in all possible worlds. This inference is criticized by showing that there is no satisfactory modelling of how singular terms can be tied to the same referents in all… Expand

References

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The Nature of Necessity.