Math 2.0

Concept

Tarskian hierarchy

Summary

A hierarchical structure of languages proposed by Alfred Tarski to avoid paradoxes in semantic theories, where each level of language can only reference levels below it, preventing self-reference.

Further reading

  1. Wikipedia, page 76765067, revision 1368301704, Glossary of logic, section T. 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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