Deg-s ma ulac sin neɣ ugar n yisumar (propositions) i yesɛan assaɣ usrid imi ulac acu i d-yezgan gar-asen ama d aferdis ama d asteɛfu ama d ticcert (tuqna, tasɣunt atg). Asumar amezwaru isem-is asumar agejdan deg-s asentel akked useɣru, ma d asumar wis sin yettas-d d usrid i seɛɛun asentel akked ukenseɣru (prdicatoide), neɣ amsimer akked ukenseɣru.