 ##  [U-Rank](/u-rank) 

  ##  [U-Rank](https://mathlogic.quantumdictionary.io/u-rank-0) 

  
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- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

A transfinite rank (commonly written U or U-rank) assigned to complete types or formulas that generalizes Morley rank by measuring the depth of forking chains; it gauges how many successive forking extensions a type admits.