Boolean algebra in Maxima -> boolsimp



Hi,

I know there is boolsimp package to do some boolean algebra in Maxima.
How is it supposed to use?

For example I want to factor boolean expression

(a and b) or (a and c)     into     a and (b or c)

using boolsimp

(%i1) 			        load(boolsimp)
(%i2) 			  factor((a and b) or (a and c))
(%o2) 			      a and b or a and c

it just gave me the original expression.

Am I missing something..?

Regards,
bowo