 ##  [Entropy Method](/index.php/entropy-method) 

  ##  [Entropy Method](https://mathlogic.quantumdictionary.io/entropy-method-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

A technique using Shannon entropy and related information inequalities to derive combinatorial bounds, counting estimates, and concentration results by modeling combinatorial objects as random variables and applying entropy subadditivity, chain rule, Shearer-type inequalities, or relative entropy arguments.