An argument is a connected series of statements intended to establish a proposition. No it isn't. It's not just contradiction. Look, if I argue with you, I must take up a contrary position. Argument is an intellectual process.
Contradiction is just the automatic gainsaying of any statement the other person makes.
No it isn't. Sorry, the five minutes is up. I'm sorry, but I'm not allowed to argue anymore. Yes, but that was never five minutes, just now. Look, this is ridiculous.