Why does Antigone believe she is right to

challenge Creon's rule?

She thinks she was right to disobey because The rules of his uncle Creon were against the people, he was being a tyrant, and everyone knew that but were too afraid to speak their minds. Antigone claims that it's not fair to not give peace from her dead brother, she wanted justice and was against the laws which humiliated, hurt and hate the man.