An eccentric philosophy professor gave
a one question final exam after a semester
dealing with a broad array of topics.

The class was already seated and ready
to go when the professor picked up his
chair, plopped it on his desk and wrote
on the board: "Using everything we have
learned this semester, prove that this
chair does not exist."

Fingers flew, erasers erased, notebooks
were filled in furious fashion. Some students
wrote over 30 pages in one hour attempting
to refute the existence of the chair.

One member of the class however, was up
and finished in less than a minute.

Weeks later when the grades were posted,
the rest of the group wondered how he could
have gotten an A when he had barely written
anything at all.


His answer consisted of two words:



"What chair?"