Counter-Examples

Proving a statement to be true can be difficult. It requires a carefully thought out argument that covers every possibility. DIS-proving a statement's truth is EASY. Simply find one counter-example that shows that the statement is not always true.

Choose the best counter-example to each of the statements below


* Locked after checks
All Correct Answers shown after locked.


A great website related to this is: http://pbskids.org/cyberchase/games/counterexamples/index.html