Final answer:
Teiresias contributes to Creon's development as a tragic hero by foreshadowing his downfall and prompting the recognition of his flaws, which aligns with Aristotle's definition of a tragic hero through peripeteia and anagnorisis elements.
Step-by-step explanation:
Teiresias' role in Antigone is integral to revealing Creon's characteristics as a tragic hero. This blind prophet provides essential foreshadowing that predicts Creon's downfall if he does not change his stubborn stance on Antigone's punishment.
Teiresias says, “No human soilure can assail the gods; This too I know, Teiresias, dire's the fall of craft and cunning when it tries to gloss Foul treachery with fair words for filthy gain.” His statement underlines the peripeteia and anagnorisis, two critical elements in the arc of a tragic hero as defined by Aristotle's Poetics.
Through this interaction, Creon begins to realize his flaws and inflexibility, which set his tragic fall into motion, fulfilling the requirement for catharsis in the audience.