BGP multihoming question.

Hi , first sorry for lame question but i'm new to BGP. In my ISP I have two full BGP sessions with my two transit providers (X and Y), and for every provider i have assigned PA (Provider Aggregatable) networks. Is it possible (if there are no filters on other side) to advertise X networks to Y and Y to accept them ? My confusion comes from the PA status , i know if it is PI there are no problem to route it to any AS. Thanks.