Oct 2, 2006
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- Hints for solving your homework puzzle

- A "similar" problem

- Given
   1. The members of the Elm St. Bridge Club are Joe, Sally, Bill, and Ellen.
   2. Joe is married to Sally.
   3. Bill is Ellen's brother.
   4. The spouse of every married person in the club is also in the club.
   5. The last meeting of the club was at Joe's house. 

- Decide on the truth of
   6. The last meeting of the club was at Sally's house.
   7. Ellen is not married. 

- What is similar between this and the homework problem about
  three professors?
	- both of them involve explicitly listing our candidates
	  and systematically ruling them out to prove a goal

- Worked out bridge club problem