A deceased man left behind a paternal half-sister and full siblings

This is a letter from Khalaf Salim al-Sayyid Salim, who works in Iraq. He says in his letter: My father was married to a woman before my mother and had a daughter from her. Then he divorced her and married my mother, and he had two sons and two daughters from her. He passed away, and about five years after his death, one of the sons passed away. Does my third sister, who is from my father’s previous wife, have a right to inherit from this brother who died most recently, or not?
Answer: No, she has no right; because she is a paternal half-sister, and the inheritance belongs to her full brother and her two full sisters. As for her paternal half-sister, the full brother excludes her. Yes.
The presenter: May Allah reward you.