Oedipus the King Reflects the Rules of Poetics??

How Oedipus Rex fulfills the requirements of Poetics?

Answer:
Sophocles was born a hundred years before Aristotle and perhaps was not aware that he wrote a near-perfect representation of the tragedy according to Aristotle’s opinion. In The Poetics, the greatest statement of classical dramatic theory, Aristotle cites Oedipus as the best example of Greek tragedy.   Tragedy is one of the most widespread forms of drama produced around the world. There are certain criteria that a drama has to follow in order for it to be characterized as a Tragedy. The criteria are established by Aristotle and are still being used today.
Aristotle's Poetics is the earliest-surviving work of dramatic theory and the first extant philosophical article to focus on literary theory. In it, Aristotle examines its "first principles" and identifies its genres and basic elements of tragedy; his analysis of tragedy constitutes the core of the discussion. It includes having a tragic hero, tragic flaw, reversal, recognition, a plot consisting of a time period, and finally catharsis. Oedipus Rex is a great example of a Greek Tragedy written by Sophocles.
Tragedy
Tragedy is a representation of an action that is worth serious attention, complete in itself, and of some amplitudes; in language enriched by a variety of artistic devices appropriate to the several parts of the play, presented in form of action, not narration; by means of pity and fear bringing about the purgation of such emotion. Thus Aristotle defines Tragedy and Sophocles justifies this in Oedipus Rex.
Plot
Tragedy is an imitation of an action that is complete, and whole, and of a certain magnitude; for there may be a whole that is wanting in magnitude. A whole is that which has a beginning, middle, and an end. Another thing is that there should be unity in the plot. Oedipus Rex conform all requirements of an Aristotelian plot. It has a beginning in which we find an oracle said that a country and his men are suffering from...