 ##  [Lascar Rank](/lascar-rank) 

  ##  [Lascar Rank](https://mathlogic.quantumdictionary.io/lascar-rank-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 stability-theoretic ordinal rank on types that refines other ordinal ranks by incorporating Lascar strong-type distinctions; it is sensitive to the finer equivalence relation given by Lascar strong types and their extension behavior.