### Mayonnaise and Theoretical Computer Science

I ordered a Philly cheesesteak at the NIST cafeteria on Wednesday. The woman behind the grill shouted, "You want mayonnaise on that?" What? I didn't know people ever had mayonnaise on that. I told her so. She furrowed her brow. "You're not from around here are you? Yeah, I can always spot the foreigners." She slows down her speech at this point, just in case I might have trouble speaking English. "In America, we eat our cheesesteaks with mayonnaise."

The guy from Jersey standing next to me almost dropped his tray. He didn't completely stifle his laughter. But he tried.

At this exact moment, Eric Norman sidled up next to me and asked me this:

The guy from Jersey standing next to me almost dropped his tray. He didn't completely stifle his laughter. But he tried.

At this exact moment, Eric Norman sidled up next to me and asked me this:

Q: What's the difference between a mathematician and a theoretical computer scientist?

A: A mathematician knows how to prove things without using induction.

## 1 Comments:

At April 30, 2007 at 3:01 PM , Michael said...

A mathematician knows how to prove things without using induction.You could probably have omitted the last three words without loss of generality. :-)

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