 ##  [Projection Map](/projection-map) 

  ##  [Projection Map](https://mathlogic.quantumdictionary.io/projection-map-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 &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

The canonical map from a product or fibered structure to one of its factors that selects the component coordinate, typically denoted πi : Πi X_i → X_j with πj((x_i)_i) = x_j.