Theorem: 1$ = 1c.

Proof:

And another that gives you a sense of money disappearing.



1$ = 100c

= (10c)^2

= (0.1$)^2

= 0.01$

= 1c



Here $ means dollars and c means cents. This one is scary in that I have seen PhD's in math who were unable to see what was wrong with this one. Actually I am crossposting this to sci.physics because I think that the latter makes a very nice introduction to the importance of keeping track of your dimensions.