##  [Unification (Logic)](/unification-logic) 

  ##  [Unification (Logic)](https://natural.quantumdictionary.io/unification-logic-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The algorithmic process of finding a substitution (mapping from variables to terms) that makes two symbolic expressions identical up to syntactic equality (or equality modulo a theory); central to automated reasoning, type inference, and logic programming.