##  [Principle of Duality](/principle-duality) 

  ##  [Principle of Duality](https://mathlogic.quantumdictionary.io/principle-duality-0) 

  

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

- Natural & Formal Sciences -

**Mathematics & Logic Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A logic and algebra principle that produces a valid 'dual' statement by systematically interchanging paired operations and constants (for example AND ↔ OR, TRUE ↔ FALSE, 0 ↔ 1) in a formula or law within propositional and Boolean contexts.