# Beta reduction

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BrettGiles (Talk | contribs) (2 cents on wording / links.) |
(I think my example actually included an eta-reduction as well as a beta conversion. Edited example.) |

## Revision as of 12:55, 30 January 2007

A *beta reduction* (also written *β reduction*) is where you actually apply a lambda function to an expression to generate a result.

For example, suppose we have

2*x*x + y

x

2*7*7 + y

We have thus performed a *beta reduction*.

Also see Lambda calculus and the wikipedia lambda calculus article.