Proof Techniques #2

Sample : To prove that a horse has an infinite number of legs

1) Horses have an even number of legs

2) They have two legs at the back and fore legs at the front

3) This adds up to six legs (which is certainly an odd number     
   of legs for a horse)

4) The only number which is both odd and even is infinity
   therefore a horse has an infinite number of legs   
						QED