# Help solve the Absorption Law

1. Sep 7, 2009

### ipitydatfu

1. The problem statement, all variables and given/known data

prove that A v (B ^ A) = A

2. Relevant equations

V = union
^ = intersection
' = complement

3. The attempt at a solution

A v (B ^ A) = (A v B) ^ (A v A) (used distributive property)

ummm yeah im kinda lost from here. much help appreciated

2. Sep 7, 2009

### Elucidus

Try

$$A \vee (A \wedge B) = (A \wedge \bold{U}) \vee (A \wedge B)$$

and work from there. (Note that U is the universe.)

--Elucidus