if u look in the slim shady lp and marshal mathers lp booklet in the credits it says who CO-WROTE with eminem...every single song on the mmlp and sslp were co-written...doesnt say anythang bout the songs bein co-written in the eminem show or encore but those albums came out after he had his OWN label..T.I ghostwrote 30% of bow wows album..rhymesfest ghostwrote kayne's jesus walks...and its not illegal ta leave the ghostwriters uncredited so theres probably hundreds more...so dont speak after u just assumed