Put on my resume that I graduated. From a school that was good, not the shitty one that went out of business.
Actually, as someone who didn't graduate, I find that just not mentioning whether or not I graduated works fine. I just say 'University of X, 200X - 200X, Mathematics' on my resume. At this point in my career it doesn't matter, and back when it might have mattered almost nobody has the balls to say to you "I see that you attended University of X for n years, did you graduate?".