 ##  [Tarski's Undefinability Theorem](/tarskis-undefinability-theorem) 

  ##  [Tarski's Undefinability Theorem](https://mathlogic.quantumdictionary.io/tarskis-undefinability-theorem-0) 

  

 [![Mathematics & Logic Dictionary](/sites/default/files/styles/large/public/2026-01/Mathematics%20%26%20Logic.png.webp?itok=UhtTRPnp)](/topic-specific-dictionaries/natural-formal-sciences/mathematics-logic)

- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A formal result that no sufficiently expressive formal language (for example, one that can represent basic arithmetic) can contain a formula that correctly and uniformly defines the truth predicate for sentences of that same language.