Is vergil dead

I assume your talking about Devil May Cry, i might be wrong. Vergil dies at the end of DMC3 when he goes to fight Mundus (the demon that Sparda could not defeat) and Mundus defeats him, but he is not fully dead if you remember Nelo Angelo in DMC1 that is Vergil's soul taken over by Mundus and he is completely evil and under the control of Mundus and Nelo fights Dante three times and after the third time Dante kills Nelo (Vergil) permanently. Its funny the only one who can truly take down a son a Sparda is a son of Sparda.