Conclusion
   - Take Home Points
      
	- You need to know the basics of FOPL.  They may be on the
            exam. 
 
	- Logic can help you prove things within a system.
 
	- There are other types of logic.
 
	- The more complex a logic, the more computationally expensive.
 
      
    
   - The basics include True and False, connectives, atoms, variable, 
       functions, quantifiers and derivation.
 
   - Reading:  For this lecture read Russell and Norvig Chapter 8 (pp
       290 - 319)
   
 
   - Reading:  for next week 
     is Russell and Norvig 461-463 (the Semantic Nets 
       section 5.1 of the Knoweldge Representation Chapter).
       The 
       Semantic Net wiki is also pretty good.