How many legs does a horse have?

Theorem: All horses have an infinite number of legs.


Proof: Everyone would agree that all horses have an even number of legs. It is also well-known that horses have forelegs in front and two legs in back. 4 + 2 = 6 legs, which is certainly an odd number of legs for a horse to have! Now the only number that is both even and odd is infinity; therefore all horses have an infinite number of legs. - Unknown


Theorem: Words mean something.


Proof: See above.