Math 4596 Topology
Syllabus Errata The Zarisky Topology
A mathematician confided
That a Mobius band is one-sided
And you'll get quite a laugh
If you cut one in half
For it stays in one piece when divided
Q: Why did the chicken cross the Möbius strip?
A: To get to the same side.
A mathematician named Klein
Thought the Mobius strip was divine
He said "If you glue
The edges of two
You can make a strange bottle like mine
