 ##  [Omega-Categoricity](/omega-categoricity) 

  ##  [Omega-Categoricity](https://mathlogic.quantumdictionary.io/omega-categoricity-0) 

  
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- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

A property of a first-order theory (in a countable language) that it has exactly one model of countable cardinality up to isomorphism.