##  [Devissage](/devissage) 

  ##  [Devissage](https://algebra.quantumdictionary.io/devissage-0) 

  

 [![Algebra](/sites/default/files/styles/large/public/2026-01/Algebra.png.webp?itok=3pHxBnUF)](/topic-specific-dictionaries/pure-mathematics/algebra)

- Pure Mathematics -

**Algebra Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A reduction technique that proves statements about a complex object by filtering it into a finite sequence of subobjects whose successive quotients (graded pieces) are simpler, and then deducing the property for the whole from properties of the pieces and the glueing data between them.