Math 2.0

Concept

Rigid designator

Summary

A term that refers to the same object in all possible worlds where that object exists, used in discussions of necessity and identity across possible worlds.

Further reading

  1. Wikipedia, page 76765067, revision 1368301704, Glossary of logic, section R. adopted
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Changed4 November 2026

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  • edge defines in: at least one definition (0 of 1)
  • edge instance_of in: at least two examples (0 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

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