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-  a single perceptron can represent many boolean functions
-  if 1 (true) and -1 (false), then to implement an AND function 
make   and and  
-  a perceptron can represent AND, OR, NAND, and NOR but not XOR!!
-  everyБе boolean function can be represented by some 
network of perceptrons only two levels deep
 
Patricia Riddle 
Fri May 15 13:00:36 NZST 1998