 ##  [Expressivity Ceiling](/index.php/expressivity-ceiling) 

  ##  [Expressivity Ceiling](https://mathlogic.quantumdictionary.io/expressivity-ceiling-0) 

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

- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

An upper bound on the class of properties or structures that a logical language or fragment can define or distinguish within a given syntactic or semantic framework; the maximal expressive reach available without changing the formal apparatus.